And the Lord was with him
 The Word of the Lord was for his help, as the Targum: 
 and he prospered whithersoever he went forth;
 that is, to war: 
 and he rebelled against the king of Assyria:
 which is explained in the next clause: 
 and served him not;
 he refused to be his servant, as his father Ahaz had been, ( 2 Kings 16:7 ) , to which he was not obliged by any agreement of his; and, if it was in his power, might lawfully shake off his yoke, which is all that is meant by rebelling against him; he refused to be tributary to him.