Gladly. It was the Mosaic Covenant which was another conditional one. "If you will indeed obey My Voice and keep my Covenant then you shall be a special treasure to Me above all people, for all the earth is Mine".
This covenant covered three areas of the people and they are (1) their personal lives with how they personally related to God (2) their social lives with how they interacted with each other and finally (3)the ordinances governing their religious lives so that as a nation they were following God on the terms He has declared. This covenant was to condition the people to be ready and able to respond when the Redeemer came.
HMMMmmm...
Which, as a whole, they were not:
"He came unto his own (neuter plural, things), and his own (masculine plural, people) received him not" (Jn. 1:11-12 AV; my supplemental explanations in blue).
But some souls truly were prepared to receive Him and did, a few more passionately than others (Zachariah, Elizabeth, Joseph, Mary, John Baptist, Beloved John, Mary of Magdala, Mary of Bethany; few = 8, 1 Peter 3:20):
"But as many as received him, to them gave he power to become the sons of God,
even to them that believe on his name:
Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God" (John 1:11 AV).
They were not born of the Law, but of The Spirit, through faith alone in Jesus of Nazareth alone, apart from fickle obedience of fallible humans to the Mosaic Law.