Joshua 5:2 Meaning: Flint Knives and Covenant Renewal

Three Hebrew words carry the weight here. Charvot tsurim (flint knives) combines cherev, normally meaning “sword,” and tsur, “rock” or “flint.” Using stone knives rather than metal was likely deliberate, a return to the ancient method used by Zipporah in Exodus 4:25, marking this as a sacred, set-apart act. The verb mul means “to circumcise,” cutting away the flesh to seal the covenant relationship. And the phrase v’shuv mol (literally “and return, circumcise”) carries the idea of turning back to the covenant that had been neglected. Shenit (a second time) does not mean circumcising the same person twice, but a second general circumcision of the people as a whole, this time for the wilderness generation who had never received the sign. Each word points to a fresh beginning: a reset of the covenant bond.

Christian commentators offer complementary insights. John Calvin focuses on Israel’s neglect: the rite had been abandoned during the wilderness years, and God now demands its restoration before Israel can fully enter the land. The Geneva Bible sees it as a necessary preparation for the Passover. Matthew Henry highlights the timing: with the Canaanites terrified, Israel could safely undergo this vulnerable operation, and the covenant renewal prepared them for the battles ahead. Barnes and other Reformed writers note that flint (rock) points to Christ, the Rock, and see the circumcision as a type of the spiritual circumcision of the heart spoken of in Colossians 2:11. Across traditions, the moment is understood as a hinge: the old, disobedient generation is gone, and the new generation must be visibly marked as God’s own.

Some readers think “circumcise again the second time” means that every Israelite male was circumcised twice. In fact, the phrase describes a second general circumcision of the people as a whole. The first had been at Sinai (see Numbers 9:5). Now a new generation, those born in the wilderness, had never been circumcised at all. The “second time” refers to the entire nation receiving the sign again, not to individuals being re-circumcised.

This verse asks us to consider what covenants we have let slip. Maybe you grew up with faith but wandered through a long wilderness season. The promises of God are still intact, but the sign of belonging has grown faint. Joshua 5:2 invites you to let God mark you again, through fresh commitment, the sacrament of baptism (recognized in various ways across traditions), or simply a deliberate turning back to the Lord. The land ahead is not entered alone. Before the battle, there is renewal. This week, find one concrete way to reaffirm your place in God’s family: a spoken prayer, a conversation with a pastor, a step of obedience you have been avoiding.