Abimelech confronts Isaac’s deception by forcing him to acknowledge the lie publicly and explain his reasoning. The king exposes the danger Isaac’s falsehood created for the entire Philistine community, establishing moral authority over the covenant bearer who should have trusted God’s protection.

Isaac admitted his deception immediately, explaining, ‘Because I thought, Lest I die because of her.’ He offered no elaborate justification, only the bare confession that fear for his life motivated the lie. Abimelech accepted this explanation without further confrontation but issued a protective decree forbidding anyone to harm Isaac or Rebekah.

Abimelech’s question cuts to the heart of Isaac’s failure by juxtaposing reality with deception. The emphatic ‘Behold’ (hinneh) forces Isaac to see what he tried to hide, the undeniable truth that Rebekah is his wife. By asking ‘how then’ rather than simply condemning, Abimelech invites explanation while exposing the irrationality of the lie. The Hebrew construction emphasizes the contradiction: knowing she is your wife, how could you say otherwise? The king frames this as a question rather than a direct accusation to allow Isaac dignity in confession while still establishing the moral high ground. This confrontation carries theological weight because the pagan king upholds truth and protects the covenant family, while the heir of Abraham compromises both through fearful deception.