KJV:
How he met thee by the way, and smote the hindmost of thee, even all that were feeble behind thee, when thou wast faint and weary; and he feared not God.
NASB:
how he met you along the way and attacked among you all the stragglers at your rear when you were faint and weary; and he did not fear God.
KJV:
And stay ye not, but pursue after your enemies, and smite the hindmost of them; suffer them not to enter into their cities: for the LORD your God hath delivered them into your hand.
NASB:
but do not stay there yourselves; pursue your enemies and attack them in the rear. Do not allow them to enter their cities, for the LORD your God has delivered them into your hand."