And being not weak in faith, he considered not his own body now dead, when he was about an hundred years old…
Having full assurance (Luke 1:1; Romans 14:5; 2 Timothy 4:5, 17). Metaphor from a ship carried forward with full sail, "Gave out all his canvas." Ventured all on God's word. Believed without hesitation or reserve. Full assurance of faith (Hebrews 10:22). Grounded on full assurance of understanding (Colossians 2:2). Conducts to full assurance of hope (Hebrews 6:11). Faith a filling grace. Unbelief empties and keeps empty.
(T. Robinson, D. D.)
Parallel VersesKJV: And being not weak in faith, he considered not his own body now dead, when he was about an hundred years old, neither yet the deadness of Sara's womb: