The Promise of Rest

I just got finished reading Hebrews 4. Something that I never saw before is that this chapter has a theme of rest. I never new that we actually had the promise of rest.(Heb.4:1) Therefore, the Lord is showing me that in the promised land you find rest. This is a place of belief. It's where my mind and emotions aren't just wandering in the wilderness and going in circles. There's no rest in that. Only discontentment, distrust and disobedience. Just like the Isrealites wandered for 40 years due to there unbelief, I ask myself, am I too wandering long because of my unbelief?
It's such a simple concept and yet it takes diligence and perseverance to enter His promise of rest.(Heb.4:11)
I also have the promise of His word being alive and active in me.(Heb.4:12) And the promise to recieve mercy and find grace when I come boldly before His throne.(Heb.4:16) It's intresting that in these two verses one can find rest but first one must believe. May I continue to trust in and believe God not only for the little things but also the big. God is so big, so strong and so mighty...there's nothing to hard for Him.