An Invitation Into Christ's RestJesus, famously, said, "Come to me, all who labor and are heavy laden, and I will give you rest" (Matthew 11:28). Millions, since he said it, have craved that rest. We seek him for it.But what is God's rest? What image does the word "rest" conjure up in your mind? I think of hammocks, beaches, books, and lazy summer days. I think of Netflix and play and sport. But what does God envision? What is God's rest?The passage before us, Hebrews 4:1-13 is all about the rest God offers to his people. The two most repeated words in the section are the words "rest" and "enter." God's preeminent desire for his children, in this passage, is for our lives to enter his rest. But, again, what is this rest?What Is God's Rest?First, to discover what God's rest is, we must look at what came before Hebrews 4. Early Jewish Christians (thus the title, Hebrews) were tempted to engage in the Old Testament rituals once again. God offered them a relationship through Christ, not a ritualistic, religious observance of him. In Hebrews 3, these folks were invited to come into the rest of God. So at least part of God's rest was to cease from the Old Testament religious observances.Second, to define God's rest, we must also look at what comes in Hebrews 4. The author will point us to the seventh day of creation, or Eden, the Promised Land after Joshua's conquest, and the Sabbath system instituted by God. So another facet to God's rest is found in all three, for they are at least emblematic of what Christ offers his people.Thirdly, and finally, to define God's rest, we must look at what comes after Hebrews 4. The author will conclude his book with a crescendo of phrases to describe the new life to come. He wrote of the city that has foundations, our homeland, which is our heavenly country and city (Hebrews 11:10, 14, 16). He talked of the city of the living God, the heavenly Jerusalem (Hebrews 12:22). He said it was the kingdom that cannot be shaken, the lasting city that is to come (Hebrews 12:28, Hebrews 13:14). So another facet of God's rest is found in the eternal city and the destiny of God's people.So, God's rest is a place, but also a state of being. It is yet future, but we can enter it right now. It is as if the heavenly throne room is trying to reach down into our current experience, our modern lives, and alter our experience. Our tomorrow should influence our today. Our eschatological hope should impact our daily grind.Or, to put it another way, our Father in heaven speaks from his throne with the hope that his children would allow his word and promises and truth to bring them into rest today. I was a little stress-ball when I was a boy. One day, after a baseball game in which I performed poorly, my father said, "Nathan, there are a billion people in China who don't even know you played that game today." For me, it was a revelation! My father's voice went with me into the batter's box in future games. His words shaped my experience and helped me rest. That is a little glimpse of the rest Father God offers his people in Hebrews 4 -- the word of heaven shaping life today.The rest of God brings us past a slave-like relationship with God and into one that responds to his grace. It brings us past dead religion and into life and joy with him. It brings us past dreadful fear and worries, and into a simple trust which is free in his love. It takes us past self-effort and self-righteousness into running in the imputed righteousness of Christ. It takes us past mere words into congruity between our words and actions.I crave this rest. I want to enter into it every day. Hebrews, as we'll read in a moment, tells us to strive to enter this rest.Entering God's Rest Should Be a Major Priority for God's Children (Hebrews 4:1)"Therefore, while the promise of entering his rest still stands, let us fear lest any of you should seem to have failed to reach it." (Hebrews 4:1)So, this rest is out there, available, somehow accessible to