Jos 22:4, Mt 11:28, Jn 14:27, Jn 16:33
In the Old Testament, God promised to give the people of Israel rest. (Jos 22:4)
Jos 22:4 And now the Lord your God hath given rest unto your brethren, as he promised them: therefore now return ye, and get you unto your tents, and unto the land of your possession, which Moses the servant of the Lord gave you on the other side Jordan.
The rest that God promised to give to the people of Israel is Christ, not the land of Canaan. (Heb 4:8-11)
Heb 4:8 For if Jesus had given them rest, then would he not afterward have spoken of another day. 9 There remaineth therefore a rest to the people of God. 10 For he that is entered into his rest, he also hath ceased from his own works, as God did from his. 11 Let us labour therefore to enter into that rest, lest any man fall after the same example of unbelief.
Jesus, the Christ, gives us true rest. (Mt 11:28, Jn 14:27, Jn 16:33)
Mt 11:28 Come unto me, all ye that labour and are heavy laden, and I will give you rest.
Jn 14:27 Peace I leave with you, my peace I give unto you: not as the world giveth, give I unto you. Let not your heart be troubled, neither let it be afraid.
Jn 16:33 These things I have spoken unto you, that in me ye might have peace. In the world ye shall have tribulation: but be of good cheer; I have overcome the world.
Also, Jesus prepares an eternal resting place in heaven for us. (Jn 14:2-3)
Jn 14:2 In my Father's house are many mansions: if it were not so, I would have told you. I go to prepare a place for you. 3 And if I go and prepare a place for you, I will come again, and receive you unto myself; that where I am, there ye may be also.