“When it was time for the harvest, Cain presented some of his crops as a gift to the Lord. Abel also brought a gift—the best portions of the firstborn lambs from his flock. The Lord accepted Abel and his gift, but he did not accept Cain and his gift.”
Genesis 4:3-5
Whether it is money, worship, praise, obedience, thanksgiving etc God’s people should be bringing their best offering to Him!