1st time it's used - Genesis 50:16-20 16 And they sent a messenger unto Joseph, saying, Thy father did command before he died, saying, 17 So shall ye say unto Joseph, Forgive, I pray thee now, the trespass of thy brethren, and their sin;

OLD TESTAMENT Deu 7:12¶Wherefore it shall come to pass, if ye hearken to these judgments, and keep, and do them, that the LORD thy God shall keep unto thee the covenant and the mercywhich he sware unto thy fathers: Deu 7:13And he will love thee, and bless thee, and multiply thee: he will also bless the