> If you're thinking of Matthew 5:18 ("For truly I say to you, until heaven and earth pass away, not the smallest letter or stroke shall pass away from the Law, until all is accomplished."), then I would like to point out that "all" was accomplished, when Jesus died on the cross.
And did heaven and Earth pass away? I seem to have missed that.
Of course, there're also this nuggest of forever:
Deut 18:19 All the heave offerings of the holy things, which the children of Israel offer unto the LORD, have I given thee, and thy sons and thy daughters with thee, by a statute for ever: it is a covenant of salt for ever before the LORD unto thee and to thy seed with thee.
And one must explain away Jesus saying:
Luke 16:17 And it is easier for heaven and earth to pass, than one tittle of the law to fail.
No, heaven and earth have not yet passed away, but the whole law was fulfilled in Jesus. What He was saying was that the Law was more "solid" than even heaven and earth, and would last until He fulfilled it.
Numbers 18:19 uses that "covenant" word again. You know, the one that was dissolved when Jesus died and rose again? With the demise of the old law, the system of sacrifices and the office of an Aaronic priesthood were done away with. We could, therefore, conclude that "forever" meant for as long as God chose to sustain the Aaronic priesthood, and that the terms of the agreement were fulfilled.
Luke 16:17 His assertion was that it would be easier to destroy heaven and earth than it would be to cause God's Law to fail. The law did not fail. Jesus fulfilled the old law and gave us a new covenant in it's place.
(Or was resurrected?)