Especially this:
While malicious lying is definitely condemned in the Bible, this does not mean that a person is under obligation to divulge truthful information to people who are not entitled to it.
Jesus Christ counseled: “Do not give what is holy to dogs, neither throw your pearls before swine, that they may never trample them under their feet and turn around and rip you open.” (Mt 7:6)
That is why Jesus on certain occasions refrained from giving full information or direct answers to certain questions when doing so could have brought unnecessary harm. (Mt 15:1-6; 21:23-27; Joh 7:3-10)
Evidently the course of Abraham, Isaac, Rahab, and Elisha in misdirecting or in withholding full facts from nonworshipers of Jehovah must be viewed in the same light.—Ge 12:10-19; chap 20; 26:1-10; Jos 2:1-6; Jas 2:25; 2Ki 6:11-23