covenant of salt # 14_2CH_13_05 # Ought ye not to know that the LORD God of Israel gave the kingdom over Israel to David for ever, [even] to him and to his sons by a covenant of salt? 
covenant of salt # 04_NUM_18_19 # All the heave offerings of the holy things, which the children of Israel offer unto the LORD, have I given thee, and thy sons and thy daughters with thee, by a statute for ever: it [is] a covenant of salt for ever before the LORD unto thee and to thy seed with thee.