"All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness, that the man of God may be complete, equipped for every good work." 2 Tim. 3:16-17 ESV

"For we are his workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them." Eph. 2:10 ESV

Between the Last Supper and Gethsemane, Jesus said this to his disciples about the consequences of their receiving his word: "Already you are clean [–thoroughly pruned like a well-tended grape vine–] because of the word that I have spoken to you. By this my Father is glorified, that you bear much fruit and so prove to be my disciples." John 15:3,8 ESV

"And God blessed them. And God said to them, 'Be fruitful....'" Genesis 1:28 ESV