Bible Verses About Salt: Ratifying covenants

All the heaue offrings of the holy things which the children of Israel shall offer vnto the Lord, haue I giuen thee, and thy sonnes, and thy daughters with thee, to be a duetie for euer: it is a perpetual couenant of salt before the Lord, to thee, and to thy seede with thee.

Ought you not to know that the Lord God of Israel hath giuen the kingdome ouer Israel to Dauid for euer, euen to him and to his sonnes by a couenant of salt?