The Bible regulates and permits slavery rather than condemning it outright, which shows it reflects human moral limitations of its time rather than divine revelation.

Why people find it persuasive

Exodus 21 and Leviticus 25 give detailed rules for owning slaves, including permanent chattel slavery of foreigners, and even Paul tells slaves to obey their masters and sends Onesimus back to Philemon instead of freeing him outright. If God authored this text, the obvious question is why an all-good being would regulate rather than abolish an institution most people today recognize as a grave evil.

Important distinctions

• • Ancient Near Eastern debt servitude versus race-based chattel slavery of the transatlantic type
• • Descriptive legal regulation of an existing practice versus divine endorsement of its rightness
• • Old Testament civil law for ancient Israel versus New Testament ethical trajectory
• • Old Testament fixed-term debt slavery versus foreign chattel slavery, which are governed differently
• • What the text permits as regulation of a fallen world versus what it commands or praises

Christian response

• • The Hebrew Bible actually contains two overlapping but distinct institutions often flattened together in translation: debt servitude among Israelites, which was fixed-term (six years, Exodus 21:2), came with release provisions in the Sabbatical and Jubilee years (Leviticus 25:39-41), and functioned more like an ancient social safety net for the poor than slavery in the modern sense; and the harsher treatment of foreign slaves, which is a genuine moral difficulty that should not be minimized. Old Testament scholar Christopher Wright, in Old Testament Ethics for the People of God (2004), and John Goldingay both argue these laws function as harm-reduction regulation of an existing ancient institution rather than its endorsement.
• • Crucially, the Torah includes provisions unparalleled in the ancient Near East: a runaway slave was to be given asylum, not returned (Deuteronomy 23:15-16), directly contrary to Hammurabi's Code, which mandated death for harboring one; and killing a slave was a capital crime (Exodus 21:20), unlike most contemporary law codes where slaves had no legal personhood at all. These are trajectory-setting restrictions within a text emerging from a specific ancient culture, not evidence of moral indifference.
• • The New Testament does not command abolition outright, but it plants seeds that make slavery increasingly untenable: Paul's letter to Philemon asks him to receive the runaway slave Onesimus 'no longer as a slave but as a brother' (Philemon 16), and Galatians 3:28 declares there is 'neither slave nor free' in Christ, a radically leveling theological claim in a slave-holding empire. Historian Rodney Stark, in For the Glory of God (2003), and Kyle Harper document how Christian theology of universal human dignity supplied the ideological resources later used explicitly by abolitionists.
• • The actual abolition movements in Britain and America were led overwhelmingly by devout Christians — William Wilberforce, John Newton, the Quakers, and Black Christian leaders like Frederick Douglass and Sojourner Truth — arguing directly from biblical texts like Galatians 3:28 and the imago Dei of Genesis 1:27 against slaveholders who also quoted the Bible. This shows the text was read by its most serious interpreters as pointing toward abolition, not merely tolerating slavery forever.
• • None of this erases the discomfort of specific texts, particularly Leviticus 25:44-46 permitting the acquisition of foreign slaves 'as property,' which most Christian ethicists today, including evangelical scholars like Christopher Wright, treat as a concession to a hardened cultural context (compare Jesus's comment on divorce law in Matthew 19:8: Moses permitted it 'because of your hardness of heart') rather than as timeless moral instruction.

Christian counterresponse

The concession reading is not ad hoc: Jesus himself explicitly names this interpretive principle for the Moses divorce law, giving textual warrant for reading some Torah provisions as accommodations to hardness of heart rather than ideals, and the internal trajectory toward greater dignity (from Hammurabi's harshness, to Torah's protections, to Paul's fictive kinship language, to actual Christian-led abolition) is a testable historical pattern, not merely a retrospective rescue.