How did Saint Paul trust in God?

Paul did not know Jesus, and there is significant reason to doubt he even knew anyone who personally knew Jesus themselves. He lived around the late 1st- Early 2nd century AD, some 60+ years (though some scholars now think it was longer) after the Crucifixion happened.

AnswerPaul had an encounter with Jesus on the road to Damascus, when the Lord appeared to Paul in a bright light and spoke to him. This changed Paul from a persecutor of Christians into a complete believer and advocate of the religion since he had seen Jesus himself.