Joshua 4.10-11 “God’s Word” Translation 
“The priests who carried the ark remained standing in the middle of the Jordan. They stood there until everything the Lord had ordered Joshua to tell the people had been carried out… The people hurried to the other side. As soon as everyone had crossed, the priests with the Lord's ark crossed and went ahead of them.”
These priests had faith, real faith. They had guts! The men who carried the Ark of the Covenant into the water of the Jordan trusted God for a miracle. They believed He would give a repeat performance of the astonishing Red Sea event which took place 40 years earlier. The waters divided and “rose up like a dam” when the priests “came to the edge of the Jordan River and set foot in the water” (Joshua 3.15-16 GWT). If the waters rose up, they could also come crashing down. The priests grasped the precarious nature of their situation. Death by drowning was a real possibility with the slightest shift in the wind or will of God. But these leaders valiantly faced danger and “remained standing in the middle of the Jordan” until “everyone had crossed” to the other side.
 GOD'S WORD Copyright © 1995 by God's Word to the Nations Bible Society.
 The Liberty Bell 7 was retrieved from the ocean floor in 1999 and there was no evidence that Gus Grissom intentionally blew the hatch. Grissom always maintained he did nothing to set off the explosives and NASA agreed. Exactly what mechanical failure caused the hatch to open remains a mystery.
The excellent graphic at the bottom of this post is entitled "Drowning" by Pretty Angel at the Deviant Art website (http://pretty-angel.deviantart.com/art/Drowning-61228318). I could not locate the artist of the (also excellent) illustration at the top of this article.