Will Smith is proud of the dad he has become.

To celebrate his eldest son Trey's 31st birthday, the famous father took to Instagram over the weekend with a touching tribute, highlighting some of their early father-son memories, as reported by PEOPLE. Warning: You might want to grab a handful of tissues.

"Happy Bday, T-Ball. You are responsible for some of the highest experiences of my life," he penned in the caption of the post. "You introduced me to the true definition of Love! I met God in your eyes."

The video opens as the Oscar winner is seen sitting down while doing a voice-over of an excerpt about Trey's birth in his 2021 memoir, "Will."

"Willard Carroll Smith III was born on November 11, 1992. From birth we called him Trey, 'cause he was the third Willard Smith," he said.

After that, he began rapping lyrics from the first verse of his song, "Big Willie Style."

"That night I don't think one wink I slept. As I slipped out my bed, to your crib I crept. Touched your head gently, felt my heart melt. 'Cause I know I loved you more than life itself. Then to my knees, and I begged the Lord please. Let me be a good daddy, all he needs. Love, knowledge, discipline too. I pledge my life to you."

Then, the "Independence Day" star shared the immense pressure he felt becoming a first-time dad.

"Could I put food on the table and keep the lights on without fail? Would I be strong enough to fend off someone who came to kill him? It's 3 a.m., I'm on my knees, I'm just a little boy. I never wanted my daddy so bad in my life," Will said in the clip.

At that moment, he said that's when "something clicked."

"Deep in a place where nothing had ever clicked before. A decision. An iron-clad conviction," he continued. "I wiped my tears, I stood up, I gently touched Trey's head," he added. "And I knew there were only two possibilities, I was gonna be the best father this planet had ever seen. Or two, I was gonna be dead."

Trey is the first child of Will and his first wife, Sheree Zampino.

He is also dad to son Jaden, 25, and Willow, 23, whom he shares with wife Jada Pinkett Smith.