Proverbs 21:2-3

All a man's ways seem right to him, but the LORD weighs the heart. To do what is right and just is more acceptable to the LORD than sacrifice.

the LORD weighs the heart
Proverbs 16:2 All a man's ways seem innocent to him, but motives are weighed by the LORD.

To do what is right and just is more acceptable to the LORD than sacrifice.
1 Samuel 15:22 But Samuel replied: "Does the LORD delight in burnt offerings and sacrifices as much as in obeying the voice of the LORD? To obey is better than sacrifice, and to heed is better than the fat of rams."
Isaiah 1:11 "The multitudes of your sacrifices--what are they to me?" says the LORD. "I have more than enough of burnt offerings, of rams and the fat of fattened animals; I have no pleasure in the blood of bulls and lambs and goats."
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 oil? Shall I offer my firstborn for my transgression, the fruit of my body for the sin of my soul? He has showed you, O man, 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.

NOTES:
seem right - Proverbs 14:12, Proverbs 16:2
weighs the heart - Proverbs 24:12, Job 31:6, Psalm 139:23, 1 Corinthians 4:4-5, Hebrews 4:12
more acceptable than sacrifice - Hosea 6:6, Proverbs 21:27, Proverbs 15:8

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