How do we know this? Because every story in the Bible is true. No matter what each person went through, God was present. He kept His promises and history together without adulterating it one bit. What we read is purely the hand of God orchestrating each event for His glory. Even when those who faultered against His will, God intervened to bring about a living parable to show the world who He is.
God is always present, how we forget this. When trouble comes our memory falls short in how great our God is.
Parting the Red Sea was a simple miracle for the Lord. Why can't we apply this to our daily lives?
Psalm 139:2 You know when I sit down and when I rise up;You understand my thought from afar.
Psalm 46:1 God is our refuge and strength, A very PRESENT help in trouble.