And the Angel of God, who went before the camp of Israel, moved and went behind them; and the pillar of cloud went from before them and stood behind them. – Exodus 14:19

The LORD is my strength and song, and He is become my salvation…Thou in Thy mercy hast led forth the people which Thou hast redeemed: Thou hast guided them in Thy strength unto Thy holy habitation. – Exodus 15:2,13

Learn to look at your circumstances through the light God hath set between Israel and the Egyptians. Will you now look back with all your eyes? How about the circumstances you have passed through? Do you see anything wrong about them now? Oh, no, say you, they were all right. As you look back you can only see the glory of God: the Lord hath led you by a right way. Who is he that can harm us? What is there to distress us? See your circumstances through the medium of the love of Jesus, and you perceive all things working for your good. Hitherto the Lord hath been our shield and our exceeding great reward. We see now no evil occurrent; He hath turned for us the curse into a blessing. The Lord has caused us to be far from fear and has put terror far away.

The cloudy pillar went behind…that the Egyptians might not see them. Their enemies were made to stumble and were compelled to come to a dead stand. “The enemy said, I will pursue, I will overtake, I will divide the spoil, my lust shall be satisfied upon them.” Why does he halt? Why does the lion pause when about to spring? He is blindfolded. He shivers in the dense blackness, bethinking him of that former day when all the land of Mizraim quailed beneath a darkness that might be felt. Be calm, O child of God; for the Covenant Angel is dealing with your adversaries, and His time is generally the night. You will hear by-and-by of what He has done. Meanwhile, remember what He did to Pharaoh and Sennacherib. The Lord may not be before you, shedding delight upon your face, but He is behind you, holding back the foe. He looks forth from the cloud and discomforts your foes. “No weapon that is formed against thee shall prosper; and every tongue that shall rise against thee in judgment thou shalt condemn.” Wherefore, stand still, and see the salvation of God! ~ C.H. Spurgeon

https://www.blueletterbible.org/comm/spurgeon_charles/sermons/1793.cfm