Luke 1:20
And behold thou shalt be dumb and unable to speak, unto the day upon which these things may take place; because thou didst not believe my words, which shall be fulfilled in their time.
Luke 1:37
Because no word shall be impossible with God.
Luke 18:27
And He said, Those things which are impossible with men are possible with God.
Romans 4:20-21
but he staggered not at the promise of God through unbelief; but was filled up with dynamite through faith, having given glory to God;
Romans 6:19-21
I speak after the manner of a man on account of the weakness of your carnality. For as ye presented your members as servants unto impurity and lawlessness pursuant to lawlessness, so now present your members servants unto righteousness pursuant to sanctification.