None of the land has ever been ceded to the United States, so there is no need to secceed. The Federal Government owns the land for the other 49 states. But for Texas they can only lease portions of land they want to occupy within Texas. Leases are conditional and don’t have to be renewed. Most of these have to be renewed every year or so.
Malachi 1:11 "For from the rising of the sun even unto the going down of the same My name shall be great among the Gentiles; and in every place incense shall be offered unto My name, and a pure offering: for My name shall be great among the tribes, saith YAHWEH of hosts."