Chapter I · (continued 2)
Reading edition
Finally, a covenant with God, whether made in secret or in public, from its very nature cannot be entered into without an oath. Sometimes the vow and oath were used together. David "sware unto the Lord, and vowed unto the mighty God of Jacob." Mutual promises among men, though they confer obligation, do not always stand connected with a covenant with God, for they are made sometimes without a vow or an oath. But a promise made to God must be made either by vow or oath, or by both; and since no covenant with Him can be made without a promise, it follows that every covenant with Him is ratified by oath in its most explicit form, or by the oath implied in the vow.