'Unchanging' in the Bible

And when the players on horns, and those who made melody in song, with one voice were sounding the praise and glory of the Lord; with loud voices and with wind instruments, and brass and corded instruments of music, praising the Lord and saying, He is good; his mercy is unchanging for ever: then the house was full of the cloud of the glory of the Lord,

And he said, O Lord, the God of Israel, there is no God like you in heaven or on earth; keeping faith and mercy unchanging for your servants, while they go in your ways with all their hearts;

And all the children of Israel were looking on when the fire came down, and the glory of the Lord was on the house; and they went down on their knees, with their faces to the earth, worshipping and praising the Lord, and saying, He is good; for his mercy is unchanging for ever.

And the priests were in their places, and the Levites with their instruments of music for the Lord's song, which David the king had made for the praise of the Lord whose mercy is unchanging for ever, when David gave praise by their hand; and the priests were sounding horns before them; and all Israel were on their feet.

And after discussion with the people, he put in their places those who were to make melody to the Lord, praising him in holy robes, while they went at the head of the army, and saying, May the Lord be praised, for his mercy is unchanging for ever.