The Lord tells us to be still and know that I am God. (Psalm 46:10) ”To be still is not to stop moving in the things of God however. It's a call to learn about just who he is. We are given a wake up call to know just who God is, to reflect on, to be in awe of him. In Psalm 46:1 “Don’t be afraid, for I have redeemed you; I am calling you by your name; you are mine." Here we are to understand that Yahweh is responsible for both Israel’s creation as living beings and their formation as a nation. Isaiah uses creation language to emphasize God’s power as Creator and His special attention to His chosen people.
God wants us to come to understand and know him for who he is and that through this understanding we may better understand who we are suppose to be. For example when we are weak he is strong, is a way of understanding an aspect of God. Therefore, looking at verse 2, “When you pass through water, I will be with you; when you pass through rivers, they will not overwhelm you; when you walk through fire, you will not be scorched the flame will not burn you.” See can see that the lord will be your protector just as he has protected his people before he will also do it again for you.
Yes, even you will be protected under the might of the Lord. Because you have been adopted into this family of God. Apostle Paul wrote in Romans 8:15 “For ye have not received the spirit of bondage again to fear; but ye have received the Spirit of adoption, whereby we cry, ‘Abba! Father!’” So if we have been adopted into this family then we truly have received the same protections that can along with others in this family. Does God change his mind? Then we are to know that when trouble comes and it seems that there is no way out. We must trust in the Lord our God, whom has said, “Don’t be afraid, for I have redeemed you.” Knowing this we can sleep knowing that he is there.