New American Standard Bible (©1995)
(for they indeed became priests without an oath, but He with an oath through the One who said to Him, "THE LORD HAS SWORN AND WILL NOT CHANGE HIS MIND, 'YOU ARE A PRIEST FOREVER '");

International Standard Version (©2008)
but Jesus became a priest with an oath when God said to him, "The Lord has taken an oath7 and will not change his mind. You are a priest forever."

GOD'S WORD® Translation (©1995)
but Jesus became a priest when God took an oath. God said about him, "The Lord has taken an oath and will not change his mind. You are a priest forever."

King James Bible
(For those priests were made without an oath; but this with an oath by him that said unto him, The Lord sware and will not repent, Thou art a priest for ever after the order of Melchisedec:)

American King James Version
(For those priests were made without an oath; but this with an oath by him that said to him, The Lord swore and will not repent, You are a priest for ever after the order of Melchisedec:)

American Standard Version
(for they indeed have been made priests without an oath; but he with an oath by him that saith of him, The Lord sware and will not repent himself, Thou art a priest for ever);

Bible in Basic English
(For those were made priests without an oath, but this one was made a priest with an oath by him who says of him, The Lord gave his oath, which he will not take back, that you are a priest for ever);

Douay-Rheims Bible
But this with an oath, by him that said unto him: The Lord hath sworn, and he will not repent, Thou art a priest for ever.)

Darby Bible Translation
(for they are become priests without the swearing of an oath, but he with the swearing of an oath, by him who said, as to him, The Lord has sworn, and will not repent of it, Thou art priest for ever according to the order of Melchisedec;)

English Revised Version
(for they indeed have been made priests without an oath; but he with an oath by him that saith of him, The Lord sware and will not repent himself, Thou art a priest for ever);

Webster's Bible Translation
(For those priests were made without an oath; but this with an oath, by him that said to him, The Lord swore, and will not repent, Thou art a priest for ever after the order of Melchisedec:)

Weymouth New Testament
for these men hold office without any oath having been taken, but He holds it attested by an oath from Him who said to Him, "The Lord has sworn and will not recall His words, Thou art a Priest for ever" --

World English Bible
(for they indeed have been made priests without an oath), but he with an oath by him that says of him, "The Lord swore and will not change his mind, 'You are a priest forever, according to the order of Melchizedek.'"

Young's Literal Translation
and he with an oath through Him who is saying unto him, 'The Lord sware, and will not repent, Thou art a priest -- to the age, according to the order of Melchisedek;')