What does Malachi 1:7 mean?
Leviticus 22:17–33 gave detailed instructions on proper sacrifices. Leviticus 21:6 specifically said that failing to follow these instructions would be to "profane the name" of God. Rather than follow these instructions, these priests in Malachi's time were offering improper—spiritually polluted—animals at the temple. This would have included sick, lame, or blemished animals. According to Malachi 1:8, these were not merely minor flaws. The animals being offered were so obviously inferior that they wouldn't have been accepted by other people, let alone God.The reference to "the Lord's table" here is a reference to the altar of sacrifice, as mentioned earlier in verse 7. This is not the acacia wood table from the tabernacle mentioned in Exodus 25:23. Whether the literal altar, or the general concept of sacrifices, Malachi is referring to the contents of the offerings being brought by the priests. By using inferior and inappropriate animals, the priests are showing profound disrespect to God.
This passage also explains God's attitude towards those in positions of spiritual leadership today. The more we know about God, and the greater the responsibility we take on, the more scrutiny we are under (James 3:1). Leading people astray, especially through apathy or disrespect for God, is a serious sin (Matthew 18:6; Galatians 1:8; 1 Timothy 6:3–5).