Why does Peter quote a Psalm of David to Christian believers in the First Century?
1 Peter 2:1–3 (ESV)
2 So put away all malice and all deceit and hypocrisy and envy and all slander. 2 Like newborn infants, long for the pure spiritual milk, that by it you may grow up into salvation— 3 if indeed you have tasted that the Lord is good.
8 Oh, taste and see that the Lord is good!
Blessed is the man who takes refuge in him!