Reference

Joshua 13:1
Young at Heart Sunday - You're Never Too Old to Answer God's Calling

13 Now Joshua was old and stricken in years; and the Lord said unto him, Thou art old and stricken in years, and there remaineth yet very much land to be possessed.

 

Joshua 11:15

15 As the Lord commanded Moses his servant, so did Moses command Joshua, and so did Joshua; he left nothing undone of all that the Lord commanded Moses.