Resty, none of those verses say anything about praying about the Bible. I know those verses are often given as ‘proof texts’ by the LDS and reiterated by members without thinking, but taken in CONTEXT, they do not state we are to ask if things are true. *SIGH*
Most of them are about PRAYER for our needs. God hears our prayers and gives His children what they need.
However, HE NEVER SAYS to pray about the truthfulness of something (doctrine or the Bible), because HE expects (actually DEMANDS) that we TRUST Him and His Word. Our feelings will deceive us and we are to test things against the BIBLE, not our feelings.
It is a good idea to look up Bible verses in context before posting them.