“The Power of Covenants” Ensign, May 2009, 20; “A covenant is an agreement between God and man, an accord whose terms are set by God (see Bible Dictionary, “Covenant”, 651). In these divine agreements, God binds Himself to sustain, sanctify, and exalt us in return for our commitment to serve Him and keep His commandments.
We enter into covenants by priesthood ordinances, sacred rituals that God has ordained for us to manifest our commitment. . . . If we are faithful, we become inheritors not only of the celestial kingdom but of exaltation, the highest glory within the heavenly kingdom, and we obtain all the divine possibilities God can give (D&C 132:20).”

Hebrews 8:9-10; “Not according to the covenant that I made with their fathers in the day when I took them by the hand to lead them out of the land of Egypt; because they continued not in my covenant, and I regarded them not, saith the Lord. 10 For this is the covenant that I will make with the house of Israel after those days, saith the Lord; I will put my laws into their mind, and write them in their hearts: and I will be to them a God, and they shall be to me a people.”

Hebrews 9:14-15; “How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God? 15 And for this cause he is the mediator of the new testament, that by means of death, for the redemption of the transgressions that were under the first testament, they which are called might receive the promise of eternal inheritance.”

Hebrews 10:9; “Then said he, Lo, I come to do thy will, O God. He taketh away the first, that he may establish the second.”

“Covenant in the New Testament The New Testament by use of the Greek diatheke transformed covenant into testament, diatheke referring to a binding will a person made to ensure proper disposal of goods upon the death of the person making the will (see Gal. 3:15; Heb. 9:17). Still, the New Testament followed the Septuagint, the earliest Greek translation, in using diatheke to translate the Hebrew berith or covenant. New Testament language is thus Greek with a strong Hebrew flavoring.” – Holman Bible Dictionary

I pray the Mormon will read each of the Bible verses in context and a good dictionary (even a Webster’s will do) to learn the real meaning of covenant. I used the Holman Bible Dictionary as a reference because it’s also accepted by the Church. 

This subject matter is hands down the most important subject matter in all of Christianity. This is actually the very first thing I go through with a brand new ex-Mormon when they leave the Church. I want for them to understand what they’re participating in, what to expect from God and why God sacrificed His Son for them. 

As Christians we’re not just in a relationship with Jesus, we’re in a covenant relationship with Jesus.