Theophylact of Ohrid, on Heb 12:14

“Follow peace with all men, and holiness: without which no man shall see God.”

“What he said above: "let us not forsake the assembling of ourselves together" (Heb. 10:25), he does now as well, leading to love. And he urges to be at peace not only with friends, but also with enemies. For he says, "if it be possible, as much as lieth in you, live peaceably with all men" (Rom. 12:18). And if you have such a disposition, then under afflictions you will not lose heart. Pay attention also to the word "have," that is, strive, drawing to yourselves, to firmly hold peace even with people who are far away. "And holiness." That is, purity: if someone is unmarried – preserving virginity; if in marriage, then – chastity: not because marriage is a holy thing, but because through the lawful relationship it preserves unimpaired the holiness from baptism. "Without which no one shall see the Lord." For neither fornicators, nor adulterers, nor the effeminate, nor abusers of themselves with mankind shall inherit the Kingdom of Heaven (1 Cor. 6:9–10). As the Lord also says in the Gospel: "Blessed are the pure in heart, for they shall see God" (Matt. 5:8).”

Imported from an open dataset — not yet checked against the printed edition.