The promises of this Psalm apply to any follower of Jesus who is willing to reject the influences of this world and love his or her neighbor. We won't do it perfectly. But certainly we must do this - not to gain God's favor, or even merely to get these promised blessings - because God has loved us so fully in Jesus, and by reflecting that love to others we honor him. That's what I want to do, and I pray you do also, Dear Reader.
