G2190–ἐχθρός–echthros

And you, estranged as you once were and even hostile in your minds, amidst your evil deeds,

ἐχθροὺς echthrous “hostile”

And yet do not regard him as an enemy, but caution him as a brother.

ἐχθρὸν echthron “an enemy”

To which of the angels has He ever said, "Sit at My right hand till I make Thy foes a footstool for Thy feet"?

ἐχθρούς echthrous “enemies”

waiting from that time onward until His enemies be put as a footstool under His feet.

ἐχθροὶ echthroi “enemies”

You unfaithful women, do you not know that friendship with the world means enmity to God? Therefore whoever is bent on being friendly with the world makes himself an enemy to God.

ἐχθρὸς echthros “an enemy”

And if any one seeks to injure them--fire comes from their mouths and devours their enemies; and if any one seeks to injure them, he will in this way certainly be killed.

ἐχθροὺς echthrous “enemies”

Then they heard a loud voice calling to them out of Heaven, and bidding them come up; and they went up to Heaven in the cloud, and their enemies saw them go.

ἐχθροὶ echthroi “enemies”