What Does Exodus 10:1 Mean?

Then the LORD said to Moses, "Go in to Pharaoh, for I have hardened his heart and the heart of his servants, that I may show these signs of mine among them." Chapter 10 opens with the explicit statement that YHWH has hardened both Pharaoh's heart and the hearts of his servants, and that this hardening serves a specific purpose: "that I may show these signs of mine among them." The divine hardening is purposive rather than punitive: it is designed to extend the sign-demonstration to its full scope. The hardening maintains the confrontation at full intensity long enough for the sign-sequence to be complete.

The "sign" language ("these signs of mine") is significant: YHWH calls the plagues "my signs" (Hebrew: ototai), the same word used in Exodus 4:9 ("if they will not believe even these two signs"). The ten plagues are not punishments added to coercion; they are signs: acts of self-disclosure through which YHWH demonstrates who he is.

A sign requires witnesses who can interpret it; the extended plague sequence ensures that the audience for the signs (Pharaoh, Egypt, Israel, the nations) has the fullest possible demonstration before the confrontation ends. The hardening serves the sign-demonstration by keeping the confrontation running to its full ten-plague conclusion.

The "I have hardened his heart and the heart of his servants" is the clearest statement that the hardening covers both Pharaoh and his court. The servants who fear YHWH (Exodus 9:20) and the servants who harden with Pharaoh (Exodus 9:34) are now both under the divine hardening that extends the sign-sequence. The division within the Egyptian court between God-fearers and Pharaoh-followers does not exempt the whole court from the hardening that ensures the plague sequence reaches its full ten-plague testimony to YHWH's power.