And they shall hearken to thy voice: and thou shalt come, thou and the elders of Israel, unto the king of Egypt, and ye shall say unto him, The LORD God of the Hebrews hath met with us: and now let us go, we beseech thee, three days' journey into the wilderness, that we may (o) sacrifice to the LORD our God.
(o) Because Egypt was full of idolatry, God would appoint them a place where they could serve him purely.