Russell Wilson and Ciara spent time inside a prison last week -- singing and dancing with over 300 inmates -- and the trip was so emotional ... Ciara actually appeared to be moved to tears.
The Denver Broncos star and the "Level Up" singer headed out to Everglades Correctional Institution in Florida to help lead a prayer with incarcerated men ... and you can see in video of their visit, the couple immersed themselves fully with the inmates right away.
Wilson read the group a bible verse ... before Ciara sang to the crowd. God Behind Bars, the org. that helped facilitate the trip, said it was all very powerful.
"The voices of the incarcerated were so loud, it felt like it could be heard by the entire prison," org. officials said in a social media post. "In a place so easily filled with so much division, there was a moment where Incarcerated men put their arms around each other and prayed for those struggling with anxiety and depression."
Wilson also shared his own video from the visit, showing him singing along loudly with inmates -- some of whom are serving life sentences -- to a popular gospel song.
Of course, the couple's philanthropy should surprise no one ... they've consistently used their free time to spread faith and cheer throughout the country -- even visiting patients at a hospital just days after Wilson was traded to Denver last year.