And Moses said to Pharaoh, “I am entirely at your service: when shall I plead [with the Lord] for you and your servants and your people, so that the frogs may leave you and your houses and remain only in the Nile?”

But I say to you, love [that is, unselfishly seek the best or higher good for] your enemies and pray for those who persecute you,

bless and show kindness to those who curse you, pray for those who mistreat you.

General references

So Moses and Aaron left Pharaoh, and Moses cried out to the Lord [as he had agreed to do] concerning the frogs which God had inflicted on Pharaoh.

But afterward they backed out [of the covenant] and made the male servants and the female servants whom they had set free return [to them], and brought the male servants and the female servants again into servitude.