Exodus

And he took the book of the covenant, and read in the audience of the people: and they said, All that the Lord hath said will we do, and be obedient.

And Moses came and told the people all the words of the Lord, and all the judgments: and all the people answered with one voice, and said, All the words which the Lord hath said will we do.

Now when I passed by thee, and looked upon thee, behold, thy time was the time of love; and I spread my skirt over thee, and covered thy nakedness: yea, I sware unto thee, and entered into a covenant with thee, saith the Lord God, and thou becamest mine.

The Lord our God made a covenant with us in Horeb.

But he spake the more vehemently, If I should die with thee, I will not deny thee in any wise. Likewise also said they all.