LOVE Mark 12:30-33

"Love the Lord your God with all your heart and with all your soul and with all your mind and with all your strength.' The second is this: 'Love your neighbor as yourself.' There is no commandment greater than these." "Well said, teacher," the man replied. "You are right in saying that God is one and there is no other but him. To love him with all your heart and with all your understanding and with all your strength, and to love your neighbor as yourself is more important than all burnt offerings and sacrifices."

You are right in saying that God is one and there is no other but him
Deuteronomy 4:35 You were shown these things so that you might know that the LORD is God; besides him there is no other.
Deuteronomy 4:39 Acknowledge and take to heart this day that the LORD is God in heaven above and on the earth below. There is no other.
Isaiah 45:6 ". . . so that from the rising of the sun to the place of its setting people may know there is none besides me. I am the LORD, and there is no other."
Isaiah 45:14 This is what the LORD says: "The products of Egypt and the merchandise of Cush, and those tall Sabeans--they will come over to you and will be yours; they will trudge behind you, coming over to you in chains. They will bow down before you and plead with you, saying, 'Surely God is with you, and there is no other; there is no other God.' "
Isaiah 46:9 "Remember the former things, those of long ago; I am God, and there is no other; I am God, and there is none like me."

more important than all burnt offerings and sacrifices
1 Samuel 15:22 But Samuel replied: "Does the LORD delight in burnt offerings and sacrifices as much as in obeying the LORD? To obey is better than sacrifice, and to heed is better than the fat of rams."
Hosea 6:6 "For I desire mercy, not sacrifice, and acknowledgment of God rather than burnt offerings."
Micah 6:6-8 With what shall I come before the LORD and bow down before the exalted God? Shall I come before him with burnt offerings, with calves a year old? Will the LORD be pleased with thousands of rams, with ten thousand rivers of olive oil? Shall I offer my firstborn for my transgression, the fruit of my body for the sin of my soul? He has shown you, O Mortal, what is good. And what does the LORD require of you? To act justly and to love mercy and to walk humbly with your God.
Hebrews 10:8 First he said, "Sacrifices and offerings, burnt offerings and sin offerings you did not desire, nor were you pleased with them:--though they were offered in accordance with the law.

Scriptures taken from the Holy Bible, New International Version® NIV®, Copyright© 1973, 1978, 1984, 2011 by Biblica, Inc.™ Used by permission. All rights reserved worldwide.