1John 5:13-21 These things have I written unto you that believe on the name of the Son of God; that you may know that you have eternal life, and that you may believe on the name of the Son of God. And this is the confidence that we have in him, that, if we ask any thing according to his will, he hears us: And if we know that he hear us, whatsoever we ask, we know that we have the petitions that we desired of him. If any man see his brother sin a sin which is not unto death, he shall ask, and he shall give him life for them that sin not unto death. There is a sin unto death: I do not say that he shall pray for it. All unrighteousness is sin: and there is a sin not unto death.
‘These things have I written unto you that believe on the name of the Son of God’ this is the purpose of the written Word that was given to us by God (2Tim. 3:16) through the prophets (Old Testament) and the apostles (New Testament); that those who believe on the name of Jesus can have eternal life. ‘That you may know that you have eternal life, and that you may believe in the name of the Son of God’ two reasons for writing: That you may have eternal life and that you may believe in Jesus.
‘The name of the Son of God’ the name of Jesus stands for justice, love, righteousness, holiness, peace, power, influence, happiness, liberty, life, light, joy, friendship, judgment, salvation, home, Heaven, and all that is good. It has been the greatest name of all ages among men. Some have died for it and some have hated it enough to be damned because of it. It is the hope of the world and the joy of all saints.
The most wonderful truth for saints is that of the free and unreserved use of His name to carry on the work of God in the Earth and to act in His stead among men in defeating sin and satan. Men are the only visible agents of God in the world. God desires them to fully represent Him with great power and authority to prove to men that God is great and powerful to save their souls. From the way the average man represents God among men, it would seem that satan is greater and more powerful than God. All arguments from these weak and failing representatives of God are not convincing to unbelievers that God is the greatest.
All men have the legal and redemptive right to use the name of Jesus in asking and receiving from God. This puts prayer on a purely legal basis. The name of Jesus means much to the Father. He will always honour this name, for it means to Him that redemption has been completed and the world is saved from eternal rule by satanic powers. It means to the Father that His eternal plan of a perfect and sinless society on Earth and in the whole universe is guaranteed. This means more to the Father than our finite minds can now grasp because of the lack of understanding of the scope of the plan of God for man. The Father recognizes all that the name of Jesus implies. He knows that we have a legal and family right to use this name in prayer. The Father knows that the right use of this name will deliver all men from sin, sickness, and failure in life. It is the glory of God to recognize the name of Jesus in prayer and to answer according to the faith exercised.
‘Know that you have eternal life:’ By personal fellowship (1:3-7; 2:13); in fullness of joy in the heart (1:4); in keeping His commandments (2:3; 3:22); when walking even as He walked (2:6; 1Pet. 2:21-23); in love of the brethren (2:9-11; 3:10-19, 23; 4:7-21; 5:1); overcoming the world and satan (2:13-14; 5:4, 18); in the hatred of the world (2:15-17); being one with Christians (2:19); in Holy Spirit anointing (2:20-27); knowing the truth that sets free (2:21; John 8:32-36); acknowledging God and Christ (2:22-25); doing righteousness (2:29; 3:7-10; 5:1-4, 18); by purifying ourselves (3:3); being born again (2:29; 3:9; 5:1-18); cleansing from sin (1:7-9; 3:5-10); in freedom from condemnation (3:20-24); the indwelling Spirit (3:24; 4:4, 13); in faith (2:23; 5:1, 10); by confessing Christ (4:14-15); and receiving Him (5:10-13; John 1:12); through answered prayer (3:21-22; 5:14-15).
‘According to his will, he hears us’ this means according to His word (John 15:7; Rom. 10:17). God cannot deny His Word or Himself. We should consider the answers as sure as if we already had them (Rom. 4:17; Heb. 11:6; Jas. 1:5-8; Mark 11:22-24).
‘Brother sin a sin’ a Christian brother, not a sinner. ‘Unto death’ all sin is forgivable except blasphemy against the Holy Spirit (Matt. 12:31-32). Since this sin is the only one unto death (i.e., unforgivable), it is useless to pray for it.