Lamsa(i)
18 For the change which took place in the former law, was made on account of its weaknesses, and because it had become useless.
19 For the law made nothing perfect, but there has come in its place a better hope, by which we draw near to God.
20 And he confirmed it for us by oath.
21 For they were made priests without oaths; but this one was made a priest with an oath, as it was said concerning him by David, The LORD has sworn, and will not lie, Thou art a priest for ever after the order of Mel-chisÆedec.