Hebrews 4:1-11(KJV)
1 Let us therefore fear, lest, a promise being left us of entering into his rest, any of you should seem to come short of it.
2 For unto us was the gospel preached, as well as unto them: but the word preached did not profit them, not being mixed with faith in them that heard it.
3 For we which have believed do enter into rest, as he said, As I have sworn in my wrath, if they shall enter into my rest: although the works were finished from the foundation of the world.
4 For he spake in a certain place of the seventh day on this wise, And God did rest the seventh day from all his works.
5 And in this place again, If they shall enter into my rest.
6 Seeing therefore it remaineth that some must enter therein, and they to whom it was first preached entered not in because of unbelief:
7 Again, he limiteth a certain day, saying in David, To day, after so long a time; as it is said, To day if ye will hear his voice, harden not your hearts.
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.
When God brought the children of Israel out of Egypt, he had a plan for them. He would lead them to a beautiful land, a land of lush green grass and cool waters. This land would be flowing with milk and honey. This would be their place of "REST", but because of unbelief many did not get to enter in. When Moses sent the twelve out to search out the land, they came back with a bad report. Twelve went out but only two came back still believing and trusting that God was able to do all that he said he would do. Joshua and Caleb knew that no matter how big the people or what the situation that God could do all things. Because of the "UNBELIEF" of the others, the children of Israel wondered in the wilderness for forty years and did not get to enter into the promised land, the "REST" that God had brought them to, except for Joshua and Caleb. Because of their belief and faith in God, they entered into their "REST". When God swore in his wrath that they would not enter into his "REST" it had a two-fold meaning. The land of Canaan was an "EARTHLY REST" but he was also referring to his "ETERNAL REST", the place of eternal peace for all those the trust and believe in him.
Jesus Christ has prepared a "RESTING PLACE" for his people. While on this earth we have a job to do. We are to live Christ-like and spread his truth to others. Once we have accepted Christ as our Lord and Savior, it doesn't stop there. We are to "LABOR" and "BELIEVE" so that we may enter into that "ETERNAL REST OF GOD". I am not saying that works will save you. YOU ARE SAVED BY GRACE, but you have a work to do. The bible teaches us that faith without works is dead. If we say we have faith in God but never do any good works for him, then that faith and belief is not being manifested and we to may miss out on entering into our "REST" because of unbelief. God's "GRACE" is the only thing that will save us, but unless we "BELIEVE AND HAVE FAITH" we will not enter into his "REST".
Hebrews 11:6
But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.
This may sound like it is contradicting, that if "GRACE" is the only thing that can save us then what does "WORKS and BELIEF" have to do with it. It is very simple. They all go hand in hand. We must first "BELIEVE THAT HE IS" before we can ever accept the "GRACE" that he offers us freely and then we are to do the "WORKS" to show our faith (belief).
James 2:18
Yea, a man may say, Thou hast faith, and I have works: shew me thy faith without thy works, and I will shew thee my faith by my works.
James 2:26
For as the body without the spirit is dead, so faith without works is dead also.
Let us therefore accept God's "GRACE" and labor to enter into that eternal "REST" that Christ has gone to prepare for us. He said if I go away, I will come again to receive you unto myself, that where I am, there you may be also.