Malachi Chapter 2, Verse 2

2: If ye will not hear, and if ye will not lay it to heart, to give glory unto my name, saith the LORD of hosts, I will even send a curse upon you, and I will curse your blessings: yea, I have cursed them already, because ye do not lay it to heart.- edit KJV text
2: If you will not hear, and if you will not lay it to heart, to give glory to my name, saith the Lord of hosts: I will send poverty upon you, and will curse your blessings, yea I will curse them, because you have not laid it to heart.— edit Douay text
2: If ye will not hearken, and if ye will not lay [it] to heart, to give glory to my name, saith the Lord Almighty, then I will send forth the curse upon you, and I will bring a curse upon your blessing: yea, I will curse it, and I will scatter your blessing, and it shall not exist among you, because ye lay not this to heart.— edit LXX text