Brotherly love is the effect of the new birth, which makes obedience to all God's commandments pleasant. (1-5) Reference to witnesses agreeing to prove that Jesus, the Son of God, is the true Messiah. (6-8) The satisfaction the believer has about Christ, and eternal life through him. (9-12) The assurance of God's hearing and answering prayer. (13-17) The happy condition of true believers, and a charge to renounce all idolatry. (18-21) MHBC 1165.1