Commentaries:
Jamieson, Fausset, and Brown
If a man keep my saying, he shall never see death—Partly thus vindicating His lofty claims as Lord of the kingdom of life everlasting, and, at the same time, holding out even to His revilers the scepter of grace. The word "keep" is in harmony with John 8:31, "If ye continue in My word," expressing the permanency, as a living and paramount principle, of that faith to which He referred: "never see death," though virtually uttered before (John 5:24; John 6:40, John 6:47, John 6:51), is the strongest and most naked statement of a very glorious truth yet given. (In John 11:26 it is repeated in nearly identical terms).
Say we not well that thou art a Samaritan, and hast a devil?—What intense and virulent scorn! (See Hebrews 12:3). The "say we not well" refers to John 7:20. "A Samaritan" means more than "no Israelite at all"; it means one who pretended, but had no manner of claim to the title—retorting perhaps, this denial of their true descent from Abraham.
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