Actor Chris Pratt marked his son Jack’s 13th birthday last weekend with a heartfelt Instagram post, declaring, “Jesus is King.”

Jack, who was born seven weeks premature and weighed just 3 pounds, 10 ounces, faced serious health challenges as a baby.

“I can’t believe you are 13 today,” Pratt wrote. “I’ve watched you grow into such an incredible young man, and I’m truly proud of the person you are becoming.”

He closed the post with a heart and praying hands emoji alongside his faith-filled proclamation.

Earlier this year, Pratt told The Christian Post that watching Jack overcome his early medical struggles deepened his faith.

“He had all these things going on. I prayed hard to God… I was in a season of transition spiritually at that time, and didn’t quite fully understand,” Pratt recalled. “And He really saved my son, and that was the moment [my faith] was cemented. My heart softened, and my faith hardened. That was the moment I was like, ‘Moving forward, I’m going to give my platform to God.’”

Pratt, known for openly sharing his Christian faith, has acknowledged facing criticism but says he remains steadfast: “When I hear words or see words, when there’s blowback… I am just going to rely on God. I was called by God to do it, and if people don’t understand me, I’m going to pray for them, and then I’m going to go back and hang out with my kids and play tag.”

Earlier this year, Pratt also thanked God publicly when wildfires spared his home in Southern California, saying: “By the grace of God, we have four walls and a roof… We’re resilient and we trust in God, and consider it all a blessing.”