1 John 5:10

“He that believeth on the Son of God, &c.] As a divine person who came in the flesh, and obeyed the law, and brought in everlasting righteousness, and obtained life and salvation for men: he that with the heart believes in him for righteousness, and eternal life, he being the Son of God, truly and properly God, and so able to save all that believe in him, hath the witness in himself; of the need he stands in of Christ, and of the suitableness, fulness, and excellency of him; the Spirit of God enlightening him into the impurity of his nature, his impotence to do anything spiritually good, his incapacity to atone for sin, and the insufficiency of his righteousness to justify him before God; and…”

“hath the witness--of God, by His Spirit (Jo1 5:8). in himself--God's Spirit dwelling in him and witnessing that "Jesus is the Lord," "the Christ," and "the Son of God" (Jo1 5:1, Jo1 5:5). The witness of the Spirit in the believer himself to his own sonship is not here expressed, but follows as a consequence of believing the witness of God to Jesus' divine Sonship. believeth not God--credits not His witness. made him a liar--a consequence which many who virtually, or even avowedly, do not believe, may well startle back from as fearful blasphemy and presumption (Jo1 1:10). believeth not the record--Greek, "believeth not IN the record, or witness." Refusal to credit God's testimony ("believeth…”

“He that believeth on the Son of God hath the witness in himself - The evidence that Jesus is the Son of God. Compare the notes at Romans 8:16. This cannot refer to any distinct and immediate “revelation” of that fact, that Jesus is the Christ, to the soul of the individual, and is not to be understood as independent of the external evidence of that truth, or as superseding the necessity of that evidence; but the “witness” here referred to is the fruit of all the evidence, external and internal, on the heart, producing this result; that is, there is the deepest conviction of the truth that Jesus is the Son of God. There is the evidence derived from the fact that the soul has found peace by…”

“He that believeth on the Son of God hath the testimony - The dear evidence of this, in himself: he that believeth not God, in this, hath made him a liar; because he supposes that to be false which God has expressly testified. 1 John 5:11”

“that believeth on: Jo1 5:1; Joh 3:16 hath the: Psa 25:14; Pro 3:32; Rom 8:16; Gal 4:6; Col 3:3; Pe2 1:19; Rev 2:17, Rev 2:28 hath made: Jo1 1:10; Num 23:19; Job 24:25; Isa 53:1; Jer 15:18; Joh 3:33, Joh 5:38; Heb 3:12 1 John 5:11”