It is sometimes thought that Jesus was adding something new to the prohibitions of the Law when he commanded us not to lust after another man’s wife. But, in fact, this prohibition is in the Decalogue, itself. The tenth commandment prohibits coveting our neighbor’s wife and the Hebrew word for covet is also translated lust after. The same is true in the New Testament. EPITHUMEO, which means literally, over-desire, is translated both as lusting and coveting.