We need to rest

The privileges we have under the gospel, are greater than any had under the law of Moses, though the same gospel for substance was preached under both Testaments. There have been in all ages many unprofitable hearers; and unbelief is at the root of all unfruitfulness under the word. Faith in the hearer is the life of the word. But it is a painful consequence of partial neglect, and of a loose and wavering profession, that they often cause men to seem to come short. Let us then give diligence, that we may have a clear entrance into the kingdom of God. As God finished his work, and then rested from it, so he will cause those who believe, to finish their work, and then to enjoy their rest. It is evident, that there is a more spiritual and excellent sabbath remaining for the people of God, than that of the seventh day, or that into which Joshua led the Jews. This rest is, a rest of grace, and comfort, and holiness, in the gospel state. And a rest in glory, where the people of God shall enjoy the end of their faith, and the object of all their desires. The rest, or sabbatism, which is the subject of the apostle's reasoning, and as to which he concludes that it remains to be enjoyed, is undoubtedly the heavenly rest, which remains to the people of God, and is opposed to a state of labor and trouble in this world. It is the rest they shall obtain when the Lord Jesus shall appear from heaven. But those who do not believe, shall never enter into this spiritual rest, either of grace here or glory hereafter. God has always declared man's rest to be in him, and his love to be the only real happiness of the soul; and faith in his promises, through his Son, to be the only way of entering that rest.

Hebrews 4:1-10

1 Therefore, since the promise of entering his rest still stands, let us be careful that none of you be found to have fallen short of it. ² For we also have had the good news proclaimed to us, just as they did; but the message they heard was of no value to them, because they did not share the faith of those who obeyed.³ Now we who have believed enter that rest, just as God has said,

“So I declared on oath in my anger,
    ‘They shall never enter my rest.’”

And yet his works have been finished since the creation of the world. ⁴ For somewhere he has spoken about the seventh day in these words: “On the seventh day God rested from all his works.”⁵ And again in the passage above he says, “They shall never enter my rest.”

⁶ Therefore since it still remains for some to enter that rest, and since those who formerly had the good news proclaimed to them did not go in because of their disobedience, ⁷ God again set a certain day, calling it “Today.” This he did when a long time later he spoke through David, as in the passage already quoted:

“Today, if you hear his voice,
    do not harden your hearts.”

⁸ For if Joshua had given them rest, God would not have spoken later about another day. ⁹ There remains, then, a Sabbath-rest for the people of God; ¹⁰ for anyone who enters God’s rest also rests from their works, just as God did from his.