Joshua 1:15

15 until the Lord your God shall have given your brethren rest, as also to you, and they also shall have inherited the land, which the Lord your God gives them; then ye shall depart each one to his inheritance, which Moses gave you beyond Jordan eastward.

Joshua 1:15 Meaning and Commentary

Joshua 1:15

Until the Lord hath given your brethren rest, as [he hath
given] you
Rest from their travels, as they had:

and they also have possessed the land which the Lord your God giveth
them:
are settled in the land of Canaan, as they were on that side Jordan:

then ye shall return unto the land of your possession, and enjoy it;
the countries of Sihon and Og, they were put into the possession of:

which Moses the Lord's servant gave you on this side Jordan, toward
the sunrising;
the land, given to them lay to the east of Jordan.

Joshua 1:15 In-Context

13 Remember the word which Moses the servant of the Lord commanded you, saying, the Lord your God has caused you to rest, and has given you this land.
14 Let your wives and your children and your cattle dwell in the land, which he has given you; and ye shall go over well armed before your brethren, every one of you who is strong; and ye shall fight on their side;
15 until the Lord your God shall have given your brethren rest, as also to you, and they also shall have inherited the land, which the Lord your God gives them; then ye shall depart each one to his inheritance, which Moses gave you beyond Jordan eastward.
16 And they answered Joshua and said, We will do all things which thou commandest us, and we will go to every place whither thou shalt send us.
17 Whereinsoever we hearkened to Moses we will hearken to thee; only let the Lord our God be with thee, as he was with Moses.

The Brenton translation of the Septuagint is in the public domain.