If faith is a gift of God, why was Jesus amazed at the faith which He found in the Centurion? Two things--faith was "found" in the Centurion and Jesus marveled at it.
Matt 8:10 When Jesus heard it, He marveled, and said to those who followed, “Assuredly, I say to you, I have not found such great faith, not even in Israel!
If faith is a gift of God, why did Jesus "see" the faith inside the paralytic man, subsequently heal him, and forgive him of his sins?
Matt 9:1-2
So He got into a boat, crossed over, and came to His own city. 2 Then behold, they brought to Him a paralytic lying on a bed. When Jesus saw their faith, He said to the paralytic, “Son, be of good cheer; your sins are forgiven you.”
There's several other examples like this in scripture. Jesus "finds faith" in people then heals them or forgives their sins.
Nowhere in the verses you gave does it say faith was or is a gift from God, the majority of mankind has faith in the wrong things and are on their way to Hell.
Listen to therobustheologian when he tells you faith is believing and is a work of man. Then you see free will as a myth, unless you deny the fall of man and fall into the pelagian camp.