"He who calls you is faithful; he will surely do it." 1 Thessalonians 5:24 (ESV)
"Behold, I will do a new thing; now it shall spring forth; shall ye not know it? I will even make a way in the wilderness, and rivers in the desert." Isaiah 43:19
"The words of the LORD are pure words: as silver tried in a furnace of earth, purified seven times." Psalm 12:6
“For the foolishness of God is wiser than men, and the weakness of God is stronger than men.”
1 Corinthians 1:25 (ESV)