I like the three images given to us in the Bible. The word of God is
a fire and a hammer that breaks a rock in pieces (Jeremiah 23:29).
It is also a sword (Ephesians 6:17). In the purposes of God the
fire is infallible for burning, but you do not ask if each flicker of the
flame is totally true. In the hands of God the hammer will infallibly end
up smashing the rock. You do not complain if one or two blows miss the
mark. And in a sword fight God will infallibly disarm the opponent. You
do not count the inerrancy of each thrust and parry.