Hebrews 9:28

So Christ was once offered to bear the sins of many
As man dies but once, Christ was offered but once, or he suffered and died but once; and that was not on his own account, or for his own sins, "but to bear the sins of many": not of angels but of men, and these not a few, but "many"; which is said to magnify the grace of God, to exalt the satisfaction and righteousness of Christ, and to encourage souls to hope in him: hence many are brought to believe in him, and many are justified by him, have their sins forgiven them, and are glorified; though Christ bore not the sins of all men; for as all men have not faith, all are not justified, pardoned, and saved: what he bore were "sins"; all kind of sin, every act of sin, and all that belongs to it; its filth, guilt, and punishment, even the iniquity of all his people; which must be a prodigious weight, and than which nothing could be more nauseous: his bearing them supposes they were upon him, though not in him, imputed, though not inherent; that he did not sink under them; that he made an entire satisfaction for them, and bore them wholly away, both from the persons of his people, and from the sight of justice. The way in which he came to bear them was this; he became a surety for all the elect; his Father imputed to him all their sins, and he voluntarily took them upon himself; where justice found them, and demanded satisfaction of him for them, and he gave it; which is an instance both of his great love, and of his great strength:

and unto them that look for him:
with affection, faith and patience:

shall he appear the second time without sin unto salvation;
this is to be understood of Christ's visible and personal appearance on earth, which will be a glorious one; he will appear in his own glory, and in his Father's glory, and in the glory of the holy angels, and in the glory of his power, to the joy of saints, and to the terror of the wicked; for every eye shall see him: and this is said to be "the second time"; that is, that he appears on earth, and personally; for though he often appears to his people, it is in a spiritual way; and though he appeared to Stephen and to Paul, yet not on earth, but in heaven; and this is called the second time, with reference to his first appearance in human nature at his incarnation, and after that he ascended to heaven; and as this will be the second, it will be the last: the manner in which he will appear, will be, "without sin"; without sin itself; without any thing like it: without any infirmities, which though not sinful are the effects of sin; without sin imputed to him, with which he appeared before; without being a sacrifice for sin; and without sin upon his people that come with him, or he shall meet whom he shall raise, or change, and take to himself: and the end of his appearance with respect to them, will be "unto salvation"; the end of his first appearance was to obtain salvation for his people, and he has obtained it, and there is a comfortable application of it made unto them by the Spirit of God; but the full possession of it will be hereafter, and into this will Christ put them, when he shall appear: the Alexandrian copy adds, "by faith", and also some other copies.