I could never please God, but His Son Jesus Christ pleased Him.
So the only thing I could do is believe and have faith in the Lord Jesus Christ, who did everything we could not do.
So faith in the Lord Jesus Christ is what pleases God?
Hebrews 11:6 And it is impossible to please God without faith. Anyone who wants to come to him must believe that God exists and that he rewards those who sincerely seek him.