For the LORD your God, who is among you, is a jealous God. Otherwise the anger of the LORD your God will be kindled against you, and He will wipe you off the face of the earth.
KJV
(For the LORD thy God [is] a jealous God among you) lest the anger of the LORD thy God be kindled against thee, and destroy thee from off the face of the earth.
ASV
for Jehovah thy God in the midst of thee is a jealous God; lest the anger of Jehovah thy God be kindled against thee, and he destroy thee from off the face of the earth.