God is not a humanist in the least, but He has faith in what He's saying to bring to pass the New Man in fullness in each one. That's a different matter entirely that God continues to call things that be not as though they were where each one is concerned, but God puts zero confidence in the flesh past, present, or future. His faith is in what He's calling forth, in what He's accomplished at the Cross, & what's available for every man through renouncing sin, embracing His Lordship, & proving one's repentance by one's deeds. He's got faith in the full armor of God, the baptism with Holy Spirit, the Blood of Jesus, Jesus's High Priestly ministry, His own love that'll never fail, the Scriptures of the Old & New Testament, the power He used when He raised Jesus from the dead & essentially gave to the Body of Christ the exact same power to live in newness of life according to Romans 6, Ephesians 1, etc. He's got faith in what He's done, & what's yet coming to pass of His Written Word & those things that He speaks to each man through Holy Spirit. That's where God's faith is at.