by jimwalton » Tue Apr 17, 2018 8:37 pm
It's a great subject of conversation. Maybe an explanation will help you frame some of your thoughts.
Pharaoh hardened his own heart before God says anything about it, showing that when God "hardened Pharaoh's heart," he wasn't doing anything actively (as you have implied), but merely let Pharaoh pursue the course Pharaoh had already decided to pursue.
Pharaoh reveals a hard heart from the starting line towards the people of Israel (Ex. 1.11-22). Pharaoh also shows a hard heart towards God in Ex. 5.2. Exodus 7.13 says Pharaoh's heart became hard and he would not listen to them. Exodus 7.14 says Pharaoh's heart was unyielding. Exodus 7.22 says Pharaoh's heart became hard. Exodus 8.15 says Pharaoh hardened his own heart. Pharaoh is said to have hardened his own heart in 8.32. And THEN we read that God hardened Pharaoh's heart. God hasn't done anything actively like interfered with his free will, but rather has left Pharaoh to harden his own heart. By the time in 9.12 it says for the first time "The Lord hardened Pharaoh's heart," Pharaoh was resolved already to pursue the course he had freely chosen. God gave him over to it (as in Romans 1.18-32: when people exercise their free will in rebellion against God, he doesn't stop them but lets them do it. He doesn't interfere with their free will.) God is not forcing Pharaoh to be rebellious, Pharaoh has already decided that on his own. God isn't actively forcing Pharaoh to do anything against his will, but rather just affirming what Pharaoh has decided on his own. God "hardened" hearts that are already hard. They made their choices, God brought elements into their lives that should have turned them around but only cemented them further in their positions. It is only in that sense that God hardened hearts.
To me an example is like a parent whose teenager is making a terrible decision, and the parent fights with them for a while and threatens them, knowing that the decision is going to train wreck the situation and be hurtful of them. But eventually the parent has to back off, because of the resistance, and say, "Go ahead, but don't say I didn't warn you." The teen, with their even more hardened heart (hardened more by the parents' attempts to change them), goes and does it, the situation train wrecks, and people are hurt.