What the verses below have in common is the idea that he who would be a minister of the word must be sure to minister that word to himself as well as to others.
If you are a preacher, be sure that you apply to your own soul the same preaching that you hope your listeners will apply to their souls.
If you are a parent, be sure that you are applying to your own life the spiritual lessons you are teaching to your children.
1 Timothy 4:16
1 Corinthians 9:23