Deuteronomy 6.1-9

These are the commandments, and the ceremonies, and the judgments which the Lord your God has commanded me to teach you; and you shall do them in the land to which you are crossing over to possess it; that you may fear the Lord your God, and keep all his precepts and his commandments which I command you today; you, and your sons, and your grandsons, for all the days of your life, that your days may be made long.  Hear, Israel, and observe, that you may do the things which the Lord has commanded you, and it be good with you, and you be further multiplied, as the Lord, the God of your fathers, has promised you, in the land flowing with milk and honey.  Hear, Israel:  The Lord is our God, the Lord alone.  You shall love the Lord your God from all your heart, and from all your soul, and from all your might.  And these words, which I command you this day, will be in your heart; and you will tell them to your sons, and you will meditate upon them as you sit in your house, and as you walk in your travels, when you sleep and when you wake.  And you will bind them up like a seal in your hand, and they will be also a symbol between your eyes, and you will write them on your gates, and upon the doorjambs of your house.

Hebrews 9.11-14

But Christ having come, the high priest of good things to come, by a greater and more perfect tabernacle not made by hands—that is, not of this creation—nor by the blood of goats and calves, but by his own blood, he entered once into the holy place, having acquired eternal redemption.  For if sprinkling the blood of bulls and goats and the ashes of a cow on the unclean makes holy to the purification of the flesh, how much more the blood of Christ, who by an eternal spirit offered himself without blemish to God, will cleanse your conscience from dead works to the serving of the living God!

Mark 12.28-34

And a certain of the scribes, coming and hearing them debating together, seeing how he replied well to them, questioned him: “What is the first of all commandments?”

And Jesus replied to him, “This is the first of all commandments: Hear, Israel: The Lord our God, the Lord is one.  And you shall love the Lord your God from all your heart, and from all your soul, and from all your mind, and from all your strength.  And the second is similar to this: You shall love your neighbor as yourself. There is no other commandment greater than this.”

And the scribe said to him, “Good teacher, truthfully you say that God is one and there is no other beside him, and to love him from all one’s heart, and from all one’s mind, and from all one’s soul and from all one’s strength, and to love one’s neighbor as oneself, is more than all burnt offerings and sacrifices.”

And Jesus, seeing that he replied with understanding, said to him, “You are not far from the kingdom of God.”