The Tower of Babel

In the preface, we find mankind in a place where they're not trying to make a name for themselves. Striking about avram here is god makes him a promise that he's going to give him this land. Avram does build a tower, but it's not the same kind of a tower. He builds an altar and calls on the name of god most high. And so he makes god's name permanent. Now what is a tent? A temporary dwelling, right? He is mobile.