For every man shall bear his own burden. That is, either do his own work, which God has allotted him to do, whether in a more public or private station of life; which, because it is generally troublesome to the flesh, is called a "burden", and "his own", being peculiar to himself, and in which no other is concerned; and which he should patiently bear, cheerfully attend to, and constantly and faithfully perform while in this world: or he shall give an account of his own actions, and not another's, to God, in the other world; he shall be judged according to his own works, what they are in themselves, and not by a comparison of other men's, who have been more wicked than he; which will be no rule of judgment with God, nor of any advantage to man.
Every wicked man will bear his own burden; that is, the punishment of his own sins, and not another's; so the judgments of God, inflicted on men in this world, are often calledavm, "a burden"; see Isa 13:1 and so may the punishment of the wicked in another world, which will be grievous and intolerable.
The saints will be exempt from bearing this burden, because Christ has bore it for them, even all their sins, and all the punishment due unto them; but another burden, if it may be so called, even an exceeding and eternal weight of glory, shall be bore by them; and every man shall receive his own reward, and not another's; and that according to his own works and labour, and not another's; not indeed for his works, but according to them, the nature of them, according to the grace of God, from whence his works spring, and by which they are performed.