He that overcometh shall inherit all things; and I will be his God, and he shall be my son.

People's New Testament

21:7 He that overcometh. Here for the first time, after the close of the seven epistles to the churches, do we have the promise to him who overcomes. See Re 2:7,11,17,26 3:5,12,21.

Wesley's Notes

21:7 He that overcometh - Which is more than, he that thirsteth. Shall inherit these things - Which I have made new. I will be his God, and he shall be my son - Both in the Hebrew and Greek language, in which the scriptures were written, what we translate shall and will are one and the same word. The only difference consists in an English translation, or in the want of knowledge in him that interprets what he does not understand.

King James Translators' Notes

all things: or, these things

Jamieson-Fausset-Brown Bible Commentary

7. He that overcometh-another aspect of the believer's life: a conflict with sin, Satan, and the world is needed. Thirsting for salvation is the first beginning of, and continues for ever (in the sense of an appetite and relish for divine joys) a characteristic of the believer. In a different sense, the believer "shall never thirst."

inherit all things-A, B, Vulgate, and Cyprian read, "these things," namely, the blessings described in this whole passage. With "all things," compare 1Co 3:21-23.

I will be his God-Greek, "I will be to him a God," that is, all that is implied of blessing in the name "God."

he shall be my son-"He" is emphatic: He in particular and in a peculiar sense, above others: Greek, "shall be to me a son," in fullest realization of the promise made in type to Solomon, son of David, and antitypically to the divine Son of David.

Matthew Henry's Concise Commentary

21:1-8 The new heaven and the new earth will not be separate from each other; the earth of the saints, their glorified, bodies, will be heavenly. The old world, with all its troubles and tumults, will have passed away. There will be no sea; this aptly represents freedom from conflicting passions, temptations, troubles, changes, and alarms; from whatever can divide or interrupt the communion of saints. This new Jerusalem is the church of God in its new and perfect state, the church triumphant. Its blessedness came wholly from God, and depends on him. The presence of God with his people in heaven, will not be interrupt as it is on earth, he will dwell with them continually. All effects of former trouble shall be done away. They have often been in tears, by reason of sin, of affliction, of the calamities of the church; but no signs, no remembrance of former sorrows shall remain. Christ makes all things new. If we are willing and desirous that the gracious Redeemer should make all things new in order hearts and nature, he will make all things new in respect of our situation, till he has brought us to enjoy complete happiness. See the certainty of the promise. God gives his titles, Alpha and Omega, the Beginning and the End, as a pledge for the full performance. Sensual and sinful pleasures are muddy and poisoned waters; and the best earthly comforts are like the scanty supplies of a cistern; when idolized, they become broken cisterns, and yield only vexation. But the joys which Christ imparts are like waters springing from a fountain, pure, refreshing, abundant, and eternal. The sanctifying consolations of the Holy Spirit prepare for heavenly happiness; they are streams which flow for us in the wilderness. The fearful durst not meet the difficulties of religion, their slavish fear came from their unbelief; but those who were so dastardly as not to dare to take up the cross of Christ, were yet so desperate as to run into abominable wickedness. The agonies and terrors of the first death will lead to the far greater terrors and agonies of eternal death.