'Warfare' in the Bible

And David saith unto the messenger, 'Thus dost thou say unto Joab, Let not this thing be evil in thine eyes; for thus and thus doth the sword devour; strengthen thy warfare against the city, and throw it down -- and strengthen thou him.'

Is there not a warfare to man on earth? And as the days of an hireling his days?

Thou renewest Thy witnesses against me, And dost multiply Thine anger with me, Changes and warfare are with me.

If a man dieth -- doth he revive? All days of my warfare I wait, till my change come.

Speak to the heart of Jerusalem, and call to her, That her warfare hath been completed, That accepted hath been her punishment, That she hath received from the hand of Jehovah Double for all her sins.

In the third year of Cyrus king of Persia, a thing is revealed to Daniel, whose name is called Belteshazzar, and the thing is true, and the warfare is great: and he hath understood the thing, and hath understanding about the appearance.