¹⁹ He did not weaken in faith when he considered the [utter] impotence of his own body, which was as good as dead because he was about a hundred years old, or [when he considered] the barrenness of Sarah’s [deadened] womb.^(A)

²⁰ No unbelief or distrust made him waver (doubtingly question) concerning the promise of God, but he grew strong and was empowered by faith as he gave praise and glory to God,

²¹ Fully satisfied and assured that God was able and mighty to keep His word and to do what He had promised.