Matthew Poole and continuators on Genesis 10:25

25. And unto Eber were born two Sons: And the Name of one was Peleg, for in his days was the Earth divided , and his Brothers Name was Ioktan.

Either 1. In the time of his Birth, whence he was so called. Or 2. Afterwards in the time of his Life: So his Father gave him this Name by the Spirit of Prophesie sore-seeing this great event and the time of it: This being no unusual thing in Scripture, as we shall hereafter see, to give Prophetical Names to Children. And thus there is a longer and more convenient space left for the Peopling of the World and ripening of things for the general dispersion and habitation of the Earth.

First in Language and then in Habitations.

Marginal references: 1 Chro. 1. 19.