This also has its precedence in the Old Testament....
God chose Moses to be His spokesman. Moses didn't want to do the talking. God didn't compel Moses to do it. Rather, He said "okay, I'll have Aaron do that".
As far as having chosen the people of Israel, God didn't compel them to obey their side of the covenant. He promised both rewards for obedience, and punishment for failure to obey. But He left the choice up to them.
And the Israelites freely chose to accept the covenant.
Go near, and hear all that the LORD our God will say; and speak to us all that the LORD our God will speak to you; and we will hear and do it. (Deuteronomy 5:27)