If that were true then we would not need Jesus but could depend on our own ability. Don't know about you but I can't cut the mustard on that.....
WE can't, which is why God gives us Faith.
'Faith is a gift of the Lord to undeserving people, the outworking of God’s electing grace and the atonement of Jesus for His own. Ephesians 2:8 confirms the truth that faith is ultimately a gift of God. “The gift of God” in the original Greek appears in the neuter grammatical form, which means that it refers back to both grace and faith earlier in the verse. Grace
and faith are divine gifts, and our Father does not give them to all people. Only this view of faith is consistent with the biblical teaching on the pervasiveness of our depravity and our desperate state apart from Christ.'
God's Gift of Faith