The Bible teaches that any offering to God must be according to His commands and must be the offering He has provided, which is Jesus Christ.
In Leviticus 1, the children of Israel are instructed to bring offerings that are of their own voluntary will, yet these offerings had to align with God's prescription. God has commanded that the only offering that He will accept is the one that He provided: His Son, Jesus Christ. This is crucial because no sinner can approach God without a proper offering, and only Christ fulfills that role as our substitute and atonement. Malachi 3:3 points to Christ as the purifier who makes an acceptable offering acceptable to God, thus establishing the necessity for believers to come to God solely through faith in Him.
Scripture References:
Leviticus 1:1-9, Malachi 3:3, Numbers 7, Ephesians 2:8-9, 2 Samuel 24, Mark 12:41-44
Commentary