KJV : Know ye <1097> (5719) (5720) therefore <686> that <3754> they which are of <1537> faith <4102>, the same <3778> are <1526> (5748) the children <5207> of Abraham <11>.

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NASB : Therefore, be sure that it is those who are of faith who are sons of Abraham.

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NASB# : Therefore<686>, be sure<1097> that it is those<3588> who are of faith<4102> who<3778> are sons<5207> of Abraham<11>.