As believers we are "changed into the same image from glory to glory, even as by the Spirit of the Lord (2 Corinthians 3:18)" just as Israel was brought "out of the land of...Egypt through a land that no man passed through (Jeremiah 2:6)." It was a walk "in the Spirit (Galations 5:25)" by following the Lord "Who went in the way before [them]...in fire by night, to shew [them] by what way [they] should go, and in a cloud by day (Deuteronomy 1:33)."

Israel was all "under the cloud (1 Corinthians 10:1)" which illustrates that God seals us with the Holy Spirit when we are saved. He does not take "away the pillar of the cloud (Exodus 13:22)." In the same manner the disciples received the Holy Spirit (John 20:22) when they were baptized into the body of Christ (Galations 3:27) and "sealed..., and given the earnest of the Spirit in [their] hearts (2 Corinthians 1:22)."

Therefore, as believers, in order for us to do the "work of God...[we must] believe on him whom he hath sent (John 6:29)." That's all that is necessary to be "led by the Spirit of God (Romans 8:14)." Just as Israel was sealed and led from Egypt to Mt. Sinai, so we as believers are sealed and guided in our lives.