New Living Translation
They will attack their neighbor on the right but will still be hungry. They will devour their neighbor on the left but will not be satisfied. In the end they will even eat their own children.

American Standard Version
And one shall snatch on the right hand, and be hungry; and he shall eat on the left hand, and they shall not be satisfied: they shall eat every man the flesh of his own arm:

Berean Study Bible
They carve out what is on the right, but they are still hungry; they eat what is on the left, but they are still not satisfied. Each one devours the flesh of his own offspring.

Douay-Rheims Bible
And he shall turn to the right hand, and shall be hungry: and shall eat on the left hand, and shall not be filled: every one shell eat the flesh of his own arm: Manasses Ephraim, and Ephraim Manasses, and they together shall be against Juda.

English Revised Version
And one shall snatch on the right hand, and be hungry; and he shall eat on the left hand, and they shall not be satisfied: they shall eat every man the flesh of his own arm:

King James Bible
And he shall snatch on the right hand, and be hungry; and he shall eat on the left hand, and they shall not be satisfied: they shall eat every man the flesh of his own arm:

World English Bible
One will devour on the right hand, and be hungry; and he will eat on the left hand, and they will not be satisfied. Everyone will eat the flesh of his own arm:

Young's Literal Translation
And cutteth down on the right, and hath been hungry, And he devoureth on the left, And they have not been satisfied, Each the flesh of his own arm they devour.

Isaiah 9:20 Additional Translations ...