Infidelity

Infidelity, in Scripture’s usage, is the breaking of covenant trust with God — the abandonment, denial, or contempt of the One who made and redeemed a people — rather than chiefly the marital unfaithfulness the modern English word most often names. The Hebrew and Greek terms commonly rendered “unfaithfulness,” “treachery,” and “unbelief” carry this wider relational sense of a violated bond, and the Bible’s examples range from slow drift to open repudiation.

The text says infidelity can begin in ease: Deuteronomy 32:15 describes Jeshurun growing fat and sleek, then abandoning God who made him and rejecting the Rock of his salvation. It hardens into open scorn — 2 Chronicles 36:16 tells of a people who mocked God’s messengers, despised his words, and scoffed at his prophets until there was no remedy — and Psalm 1:1 treats the seat of scoffers as the settled end of a path that begins with walking and standing. Proverbs 1:22 sets mockery beside hating knowledge. In Daniel 7:25 the hostility is imperial: a king speaks words against the Most High and plans to change the times and the law. The New Testament names the same posture in false teachers who secretly deny the Master who bought them (2 Peter 2:1) and in mockers who walk after their own lusts in the last days (2 Peter 3:3).

Scripture consistently portrays infidelity as an affront rather than a mere absence of belief. Hebrews 10:29 describes treading under foot the Son of God, counting the blood of the covenant unholy, and insulting the Spirit of grace; its companion is the creature’s retort to the Creator, “Why did you make me like this?” (Romans 9:20), and the enemy’s taunt, “Where is Yahweh your God?” (Micah 7:10). Set over against it, 2 Peter 1:4 and 1:19 present the promises and the prophetic word as the means by which believers escape the world’s corruption and keep watching until the day dawns.

Christian traditions differ over how far the category reaches. Some read the warnings of Hebrews 10:29 and 2 Peter 2:1 as addressed to people genuinely joined to Christ, and therefore as evidence that perseverance is not automatic; others read them as describing false professors whose denial shows they were never truly of the people of God, and hold that genuine faith is kept to the end. Traditions also differ over whether infidelity names only deliberate repudiation or extends to the doubt and weakness genuine believers experience, and pastoral practice — who is warned, who is reassured, who is disciplined — follows those readings.

AI-generated reference entry, grounded in the passages where this term appears — history and Scripture stated as such, interpretation labeled as interpretation. Not a substitute for the text itself.