A flat reading of the Bible allows us to proof-text any idea we want, but Jesus is the Word of God. So if Moses says to practice capital punishment and stone certain sinners, Jesus says, “Let the one without sin cast the first stone,” and God says, “This is my beloved Son. Listen to him!” Or if Elijah calls down fire from heaven to consume the soldiers sent to arrest him, Jesus says, “Love your enemies,” and God says, “This is my beloved Son. Listen to him!”
