Chasidut zu Bamidbar 36:13

These are the words that Moses addressed to all Israel on the other side of the Jordan etc after he had defeated Sihon king of the Amorites etc (Deut. 1:1 - Deut. 1:4) - One needs to understand: isn't explained in the words of our sages that whenever the expression "these" is used it cancels what came before? And what is cancelled here with "these"? Also, at first glance the expression "on the other side of the Jordan" is unnecessary, since we already know it, given that we read the end of Mas'ei (Numbers 36:13). Also, what is the need for the Torah to give the indication "after he defeated Sihon"? Didn't we know this already?