1 John 2:25

“And this is the promise that he hath promised us, &c.] Either God the Father, who is that God that cannot lie, who in the covenant of his grace, before the world began, made this promise unto his people, [even] eternal life; which promise, with all others, was put into the hands of Christ, where, with them, it is yea and amen; and also the thing itself promised, where it is hid, and lies safe and secure: or the Son, the Lord Jesus Christ, who has promised it in the Gospel; for this is the sum of the Gospel declaration, that whoever believes in him shall have everlasting life; and this lies in the knowledge of the Father, and of the Son, and in the enjoyment of them, and conformity to them;…”

“this is the promise--Eternal life shall be the permanent consummation of thus abiding in the Son and in the Father (Jo1 2:24). he--Greek, "Himself," Christ, "the Son" (compare Jo1 1:1). promised-- (Joh 3:15, Joh 3:36; Joh 6:40, Joh 6:47, Joh 6:57; Joh 17:2-3).”

“And this is the promise that he hath promised us, even eternal life - This is evidently added to encourage them in adhering to the truths which they had embraced respecting the Son of God. In maintaining these truths they had the promise of eternal life; in departing from them they had none, for the “promise” of heaven in our world is made only to those who embrace one class of doctrines or opinions. No one can show that any “promise” of heaven is made to the mere possessor of beauty, or wealth, or talent; to the accomplished or the “happy”; to those who are distinguished for science, or skill in the arts; to rank, or birth, or blood; to courage or strength. Whatever expectation of heaven…”

“He - The Son. Hath promised us - If we abide in him. 1 John 2:26”

“Jo1 1:2, Jo1 5:11-13, Jo1 5:20; Dan 12:2; Luk 18:30; Joh 5:39, Joh 6:27, Joh 6:47, Joh 6:54, Joh 6:68, Joh 10:28; Joh 12:50, Joh 17:2, Joh 17:3; Rom 2:7, Rom 5:21, Rom 6:23; Gal 6:8; Ti1 1:16, Ti1 6:12, Ti1 6:19; Tit 1:2, Tit 3:7; Jde 1:21 1 John 2:26”