New Revised Standard Version
When the king of Egypt was told that the people had fled, the minds of Pharaoh and his officials were changed toward the people, and they said, “What have we done, letting Israel leave our service?”

Contemporary English Version
When the king of Egypt heard that the Israelites had finally left, he and his officials changed their minds and said, "Look what we have done! We let them get away, and they will no longer be our slaves."

New American Bible
When it was reported to the king of Egypt that the people had fled, Pharaoh and his servants had a change of heart about the people. “What in the world have we done!” they said. “We have released Israel from our service!”

Douay-Rheims Bible
And it was told the king of the Egyptians that the people was fled: and the heart of Pharao and of his servants was changed with regard to the people, and they said: What meant we to do, that we let Israel go from serving us?

And it was told the king of the Egyptians that the people was fled: and the heart of Pharao and of his servants was changed with regard to the people, and they said: What meant we to do, that we let Israel go from serving us?

and the heart

Exodus 12:33 And the Egyptians pressed the people to go forth out of the land speedily, saying: We shall all die.

Psalm 105:25 He turned their heart to hate his people: and to deal deceitfully with his servants.

why have we

Jeremiah 34:10-17 And all the princes, and all the people who entered into the covenant, heard that every man should let his manservant, and every man his maidservant go free, and should no more have dominion over them: and they obeyed, and let them go free. . . .

Luke 11:24-26 When the unclean spirit is gone out of a man, he walketh through places without water, seeking rest: and not finding, he saith: I will return into my house whence I came out. . . .

2 Peter 2:20-22 For if, flying from the pollutions of the world, through the knowledge of our Lord and Saviour Jesus Christ, they be again entangled in them and overcome: their latter state is become unto them worse than the former. . . .