I know we tend to look at this as lying, and perhaps we can say (and honestly so) that it wasnt being truthful. Though I do believe it might better fall under the realm of whats termed a traitor or a betrayer. Given the OP speaks of war (and Jesus in respects to counting the cost).
We know (for example) that Rahab (if caught) would probrobly be considered a betrayer to her own country, but (before God) she was not a betrayer to the messengers of Joshua (the servant of God).
So, where she might have lied to the intent to protect them (the servants of the living God) from harm (handing them over to death). Her actions concealed them (because she knew Whom she believed). What is lawful before God (in such cases) if in your own power to do? To save a life or destroy it?
Now, Judas on the otherhand (who is noted as the Lords betrayer) told the truth (and in respects to where to find Jesus). Judas knowing "the place" where Jesus frequented with his own disciples. And this to specifically to hand him over (which was to his death).
So one (Rahab) lied (and protected) and Judas who told the truth (and betrayed).
Might depend where someone believes their allegience is, whether its an allegiance unto God (and their citizenship) whether in heaven or whether we profess our allegiance and citizenship on earth. Getting that a tad confused might have brother betraying brother, or parents their children (etc) in the name of doing what is right. Meaning handing over the LORDS to the enemies of the LORD.
Same with Obadiah (and he was Ahabs governor). So he is witholding information from him (in that earthly stewardship). And this because he greatly feared the LORD (as did the Hebrew women) who would not do as the King said (to kill) and the same of Obadiah, he would (quite contrarily) see that the prophets of the Lord be protected from harm. Because he feared, and reccognized there was One who was higher then they.
Jesus speaks of brethren betraying brethren unto death to, so betrayal might make for an interesting topic.
And also, among the ungodly (which fear not God) I do believe it shows where one's loyalties lie in that sense. Abraham asked Sarah to show kindness to him by acknowledging him as "my sister" (which she was) but not my wife (which she was) because for the sake of the later they might kill him (to take her) but if they knew he was just her brother they wouldnt see he as a threat and treat him well (for the sake of a brother) verses a husband. It was actually a wise move, though Isaac did the same and it was less true in Isaacs case.
Heres an authority after Paul here (a govenor with a garrison with him after Paul) And Paul says...
2Cr 11:32 In Damascus
the governor under Aretas the king kept the city of the Damascenes
with a garrison,
desirous to apprehend me:
2Cr 11:33 And
through a window in a basket was I let down by the wall,
and escaped his hands.
Paul was LET DOWN. Paul was being HELPED there. So its quite apparent that there are brethren (who will not betray their brethren) and who will risk their necks for those in Christ. And this in the face of a governor with an entire garrison behind him.
Now I have heard its wrong to lie in every case, and all I can say is if there was an oppressive government seeking to kill my brethren in Christ I would do the same. I too would hide them, or let them down through a window (as was Paul). And if those seeking them asked me "which way did they go"? I'd point (the opposite direction) and say "that a way"! (way the other way).
Handing over a innocent brother in the Lord to his death (into the hands of the ungodly) is not something I would want to be guilty of.
Though we know Jesus does speak of brethren betraying brethren unto death. I'd rather be considered a liar verses a participant in their death. And I'll let God judge my actions (in respects to my alligience) and the intent of my heart (to save) rather then destroy another.
It could be seen as a catch 22 (sorta) but not really, because he that
says he loves (God) but hates (his bother)
is a liar. So it doesnt really doesnt take an outright lie (as we might think of it) to make that one a liar. However, in the same breath if anyone hates his brother is also a murderer. So again it doesnt take laying a hand on him to be one. And we are our brothers keeper, it speaks laying down your life for one another, and this is in the context of greater love.
But then again, how could I love my brother if I betray him into the hands of those who want to put him to death?
As I said before,
I hope to God there are Rahabs around if my time ever come (in a time similar to the Nazis) because most are like, "I dont want to lie (and be like Rhab) I'd rather be like Judas (and tell)
See what I mean?
Better yet may God allow me the priviledge of concealing my brethren if they are just going to turn each other in for the sake of telling the truth to the enemy
Im all for saving the butts of my brethren who serve our Lord Jesus Christ, and I sure hope God forgives me for pulling a Rahab (or Obadiah) move
Im glad Rahab is in there "as an example" of faith. So I could say, hey I can actually do that
