Hebrews 4:9-10 - anyone who enters God's rest also rests from his own work

There remains, then, a Sabbath-rest for the people of God; for anyone who enters God's rest also rests from his own work, just as God did from his.

There remaineth therefore a rest to the people of God. For he that is entered into his rest, he also hath ceased from his own works, as God did from his.

So there remains a Sabbath rest for the people of God. For the one who has entered His rest has himself also rested from his works, as God did from His.

Hebrews 4:9-10

Commentary

Here the writer uses a different Greek word for rest (sabbatismos), which is related to the word Sabbath. It refers to the eternal rest which will be enjoyed by all who have been redeemed by the precious blood of Christ. It is a "Sabbath" keeping that will never end.
Whoever enters God's rest enjoys a cessation from labor, just as God did on the seventh day. Before we were saved, we may have tried to work for our salvation. When we realized that Christ had finished the work at Calvary, we abandoned our own worthless efforts and trusted the risen Redeemer. After salvation, we expend ourselves in loving toil for the One who loved us and gave Himself for us. Our good works are the fruit of the indwelling Holy Spirit. We are often weary in His service, though not weary of it. In God's eternal rest, we shall cease from our labors down here. This does not mean that we will be inactive in heaven. We shall still worship and serve Him, but there will be no fatigue, distress, persecution, or affliction.

MacDonald, W., & Farstad, A. (1997, c1995). Believer's Bible Commentary : Old and New Testaments (Heb 4:9). Nashville: Thomas Nelson.