'Tower' in the Bible

therefore, behold, I am against thee, and against thy rivers, and I will make the land of Egypt an utter waste and desolation, from the tower of Seveneh even unto the border of Ethiopia.

Thus saith Jehovah: They also that uphold Egypt shall fall; and the pride of her power shall come down: from the tower of Seveneh shall they fall in it by the sword, saith the Lord Jehovah.