Melania Trump was the picture of a supportive first lady on Thursday morning, when she joined her husband at a National Day of Prayer service in the Rose Garden.

The 49-year-old mother-of-one happily held President Donald Trump's hand as they made their way out into the open area from the White House, and she stood by his side as he addressed attendees, which included several victims of last weekend's California synagogue shooting.

Embracing the warmer spring weather, Melania chose to go bare-legged and bare-armed for the service, wearing an elegant forest-green $2,010 sleeveless Emilia Wickstead dress that was cinched in at her waist by a thin belt.

Hand-in-hand: Melania Trump looked radiant in a demure green dress as she joined her husband at a National Day of Prayer service in the Rose Garden on Thursday morning

Designer dream: The 49-year-old first lady chose a $2,010 Emilia Wickstead dress for the occasion, which she paired with fun floral heels

Off they go: The first couple exited the White House together and made their way into the Rose Garden, where they both addressed their guests

Support: She stood alongside President Donald Trump and held his hand as they greeted their guests, among which were several victims from Saturday's devastating synagogue shooting

It also appeared as though Melania's ensemble may have been influenced, at least in part, by the event's sun-soaked venue; the first lady paired her green frock with a pair of pale floral-patterned heels that looked perfectly at home on the Rose Garden grass.

Melania and her husband made their way out to the space together, clasping hands as they greeted their guests, before making their way to the microphone to speak to the attendees.

Once there, a glowing Melania introduced her husband, who happily praised his wife for all her hard work as the first lady, before calling for an all-out fight against anti-Semitism in the wake of Saturday's devastating synagogue shooting in California.

'We will fight with all our strength and everything that we have in our bodies to defeat anti-Semitism,' Trump said.

He then invited Rabbi Yisroel Goldstein of the Chabad of Poway Synagogue, where the tragedy took place, to come to the podium and address attendees.

Rabbi Goldstein, who was shot in both hands and lost a finger during the horrific incident, thanked the president for his kindness in the wake of the shooting, telling those gathered that Trump had been the person 'who began my healing'.

He then praised the president for being, 'as they say in Yiddish, a mensch par excellence'.

'I should have been dead by now,' the 57-year-old said . 'I was in the line of fire, bullets flying all the way.'

The Poway shooting came exactly six months after a white supremacist shot dead 11 people at a synagogue in Pittsburgh, Pennsylvania, the worst attack against Jewish people in the modern history of the United States.

For luck! Melania introduced her husband on-stage and they exchanged a quick kiss, before he proceeded to praise her work as first lady

Smiling: The mother-of-one looked happy and relaxed as she spoke with guests at the service

Summer ready: She left her long brunette locks down in a straight style around her shoulders, and opted to model her signature glamorous makeup look

Friendly: After introducing Trump, Melania took a seat and applauded him from the front row

Au natural: Melania's ensemble looked as though it had been inspired by the outdoor setting of the service, which was held in the sunlight outside

A 19-year-old teen, John Earnest, has pleaded not guilty to murder and hate crimes charges over the California attack.

As well as addressing the recent shooting, Trump used the prayer service to speak out against 'evil and hate-filled' attacks that have targeted religious communities around the world in recent months, from New Zealand to Sri Lanka, to Pittsburgh.

'As we unite on this day of prayer, we renew our resolve to protect communities of faith and ensure that all people and all of our people can live, pray and worship in peace,' he said.

The outdoor ceremony follows a National Day of Prayer dinner that was hosted by the first couple at the White House on Wednesday evening, when Trump spoke about the importance of unity and paid tribute to the victims of the California synagogue shooting and Sri Lanka Easter bombings.

100 interfaith leaders and Trump administration officials gathered at the Capitol for the affair in anticipation of the National Day of Prayer, which falls on Thursday.

First Lady Melania entered the dinner hand-in-hand with Trump, dazzling in a flower-embroidered cream colored gown.

Trump opened the evening with a speech on how people of faith around the world have faced terrible hardship in the past year.

Warm introduction: The first lady spoke at the podium ahead of her husband, welcoming the guests to the service, before inviting her husband to the microphone

Right-hand man: During her speech, President Trump stood behind his wife with his arms crossed in front of him, appearing to listen intently as she spoke

Fight: During his own speech, Trump called for an all-out fight against anti-Semitism in the wake of Saturday's devastating synagogue shooting in California

Close: The first couple put on an incredibly intimate display, holding hands and hugging one another throughout the emotional event

In his speech, he said violence and terrorism against people of all faiths must end, and that 'all civilized nations must join together in this effort.'

Trump paid respects to Jewish-Americans killed and wounded last week at the Chabad of Poway synagogue in California. He also recalled the attacks on Christians in Sri Lanka last Easter and on Muslims in New Zealand the month before and cited the burning of three black churches in Louisiana and last year's shooting spree at a Pittsburgh synagogue.

'All of us in this room send our love and prayers to the Jewish Americans wounded at the Chabad of Poway shooting in California,' he said. 'And our hearts break for the life of Laurie Gilbert-Kaye who was so wickedly taken from us.

'We mourn for the Christians murdered in Sri Lanka on Easter Sunday, and grieve for the Muslims murdered at their mosques in New Zealand.'

'Here at home, we also remember the three historically black churches burned recently in Louisiana and the horrific shooting last year at the Tree of Life Synagogue in Pittsburgh,' he added.

'America will be a nation that believes forever, and we certainly believe – more than anyone – the power of prayer. It's the most powerful thing there is,' Trump declared from the State Dining Room.

Together: The first couple also hosted a National Day of Prayer dinner at the White House Wednesday evening, where Melania dazzled in a cream lace dress

Speaking out: In Trump's speech, he said violence and terrorism against people of all faiths must end, and that 'all civilized nations must join together in this effort'

Sharing: The first lady shared several images from the event on her social media accounts

At the mic: She also took to the podium to share a few words before the crowd of 100

'Tonight we break bread together united by our love of God, and we renew our resolve to protect the sacred freedom of religion – all of us,' he added.

Religious leaders from the Christian, Jewish, Muslim, Hindu and Sikh faith, Trump administration officials and their guests gathered for the black tie affair.

Vice President Mike Pence and his wife were also in attendance. As was Trump's son-in-law Jared Kushner.

Melania Trump took to Twitter and Instagram to gush about the event.

'It was an honor to host so many wonderful faith leaders who joined us for dinner at the @WhiteHouse in celebration of tomorrow’s National Day of Prayer,' she posted Wednesday evening.

The National Day of Prayer falls on the first Thursday of May each year, according to a law passed by Congress in 1988.

In classic Trump form, he took some time to boast about his administration's latest accomplishments in his speech, this time announcing the Senate will confirm his 100th appointed federal judge.

'I'm thrilled to report that tomorrow the Senate will confirm the 100th federal judge through the court system,' he announced.

'Under my administration, we're getting to a level where we're going to be breaking records with respect to the judiciary, which means a lot to the people in this room who were treated very poorly. With time you'll see what happens,' he added.