G5593–ψυχρός–psuchros

And whoever gives to one of these little ones a cup of cold water only, in the name of a disciple, truly I say to you, he will not go without his reward.

ψυχροῦ psuchrou “of cold [water]”

I have knowledge of your works, that you are not cold or warm: it would be better if you were cold or warm.

ψυχρὸς psuchros “cold”ψυχρὸς psuchros “cold”

So because you are not one thing or the other, I will have no more to do with you.

ψυχρός, psuchros “cold,”