According to verse 7, there is nowhere we can go where God is not. Regardless of where we are, God is there to care and understand. We have a God who loved us so much that He gave His only Son to die so that we might live.
Verse 13 says that even in our mother's womb, we are covered by God. Imagine, even before we were born, God knew all about us. Is it any wonder that David wrote, "Search me o God, and know my heart. Lead me in the way everlasting." David realized and so should we that God knows everything about us. We should live the best life possible before Him. We should live every day as if Jesus was walking by our side, because in reality, He is not only by us, but in us.