wa-zqup 'at la-`amamaya'One could translate this as "and a sign will be lifted up to the nations" but other understandings are possible. The term 'at has a slightly wider meaning than sign or miracle. In Genesis 1:14, the term is used for the constellations. The term can also be used for letter as a unit of writing, not as a synonym for epistle.
The verb zqap also means to crucify or to hang. And aleph-taw, the two letters used to write 'at are the first and last letters of the Aramaic alphabet. There is an Aramaic saying about going from aleph to tav meaning from beginning to end. The Greek equivalent would be alpha and omega. That provokes some interesting speculation, but not any that would not be appropriate for a Sunday.