Walking represents living, and usually means living according to the true things taught to us by the Lord -- to "walk in His ways." When the Lord is pictured walking, it means life itself.

3414. 'And Abimelech said to Isaac' means the Lord's perception regarding that doctrine. This is clear from the meaning of 'saying' as perceiving, often dealt with already; from the representation of 'Abimelech', here the king of the Philistines, as that doctrine, dealt with in 3365, 3391; and from the representation of 'Isaac' as the Lord's Divine Rational.