Malachi 1:14

1:14 “There will be harsh condemnation for the hypocrite who has a valuable male animal in his flock but vows and sacrifices something inferior to the Lord. For I am a great king,” says the Lord who rules over all, “and my name is awesome among the nations.”

Malachi 2:15

2:15 No one who has even a small portion of the Spirit in him does this. What did our ancestor do when seeking a child from God? Be attentive, then, to your own spirit, for one should not be disloyal to the wife he took in his youth.