Harden not your hearts as at Meribah.  Just the mention of the name Meribah was enough to trigger the Israelites’ memories.   The prophets, the psalms, and even today’s reading from Hebrews recall this place, so it must be important.   What happened there? The word meribah means quarrel, and that’s what the Israelites had been doing.   God had delivered them from Egypt and brought them to safety by parting the Red Sea for them.   Now they were...