Exodus 20:25
And if thou wilt make me an altar of stone, thou shalt not build it of hewn stone: for if thou lift up thy tool upon it, thou hast polluted it.
Cross-reference
Deuteronomy 27:5
Parallel
Deuteronomy 27:5 repeats the command not to use iron tools on altar stones, directly paralleling Exodus 20:25.
Deuteronomy 27:6
Parallel
Deuteronomy 27:6 continues the instruction to build with uncut stones, echoing Exodus 20:25's prohibition on hewn stone.
Joshua 8:31
Prophetic fulfillment
Joshua 8:31 records the construction of an altar with uncut stones exactly as commanded in Exodus 20:25—a direct fulfillment.
Isaiah 65:3
Contrast
Isaiah 65:3 condemns offering on bricks – a manufactured material, contrasting with the natural uncut stones commanded here.