'Neck' in the Bible

So circumcise your heart, and stiffen your neck no longer.

and the elders of that city shall bring the heifer down to a valley with running water, which has not been plowed or sown, and shall break the heifer’s neck there in the valley.

All the elders of that city which is nearest to the slain man shall wash their hands over the heifer whose neck was broken in the valley;

therefore you shall serve your enemies whom the Lord will send against you, in hunger, in thirst, in nakedness, and in the lack of all things; and He will put an iron yoke on your neck until He has destroyed you.