'Says the Lord' in the Bible

However, God finds fault with them [showing its inadequacy] when He says,“Behold, the days will come, says the Lord,When I will make and ratify a new covenantWith the house of Israel and with the house of Judah;

Not like the covenant that I made with their fathersOn the day when I took them by the handTo lead them out of the land of Egypt;For they did not abide in My covenant,And so I withdrew My favor and disregarded them, says the Lord.

“For this is the covenant that I will make with the house of IsraelAfter those days, says the Lord:I will imprint My laws upon their minds [even upon their innermost thoughts and understanding],And engrave them upon their hearts [effecting their regeneration].And I will be their God,And they shall be My people.

“This is the covenant that I will make with themAfter those days, says the Lord:I will imprint My laws upon their heart,And on their mind I will inscribe them [producing an inward change],”He then says,

For we know Him who said, “Vengeance is Mine [retribution and the deliverance of justice rest with Me], I will repay [the wrongdoer].” And again, “The Lord will judge His people.”