IV. The wonderful deliverance which God wrought for them, notwithstanding. Though they forfeited the favour while it was in the bestowing, and when God would have healed them when their iniquity was discovered (Hos. vii. 1), yet mercy rejoiced against judgment, and God did what he designed purely for his own name's sake, v. 9. When nothing in us will furnish him with a reason for his favours he furnishes himself with one. God made himself known to them in the sight of the heathen when he ordered Moses publicly to say to Pharaoh, Israel is my son, my first-born, let them go, that they may serve me. Now, if he had left them to perish for their wickedness as they deserved, the Egyptians would have reflected upon him for it, and his name would have been polluted, which ought to be sanctified and shall be so. Note, The church is secured, even when it is corrupt, because God will secure his own honour.