It’s God who gives us faith and the courage to assume this faith according to the Word:

Lord, You will establish peace for us, FOR YOU HAVE ALSO DONE ALL OUR WORKS IN US. Isaiah 26:12

…for it is God WHO WORKS in you both to WILL and to DO for HIS GOOD PLEASURE. Philippians 2:13

But without faith it is impossible to please Him, for he who comes to God must believe that HE IS, and that He is a rewarder of those who diligently seek Him. Hebrews 11:6