Exodus 4:23
ESV
and I say to you, “Let my son go that he may serve me.” If you refuse to let him go, behold, I will kill your firstborn son.’”
NIV
and I told you, 'Let my son go, so he may worship me.' But you refused to let him go; so I will kill your firstborn son.''
NASB
So I said to you, ‘Let My son go so that he may serve Me’; but you have refused to let him go. Behold, I am going to kill your son, your firstborn.'?’?'
CSB
I told you: Let my son go so that he may worship me, but you refused to let him go. Look, I am about to kill your firstborn son! "
NLT
I commanded you, 'Let my son go, so he can worship me.' But since you have refused, I will now kill your firstborn son!''
KJV
And I say unto thee, Let my son go, that he may serve me: and if thou refuse to let him go, behold, I will slay thy son, even thy firstborn.