Mark displays a knowledge of tool called 'Drash' דרש which means 'seek'. When seeking, you have a clue of what you are looking for. In practice one compares and contrasts something known, with various things found. Mark knows what John was doing, and as he searched the scriptures, found a prophecy that looked like it could be compared.
He found the passage in Isaiah and relates it this way:
- [[[Mr 1:2]] As it is written in the prophets, Behold, I send my messenger before thy face, which shall prepare thy way before thee.
- Mr 1:3 The voice of one crying in the wilderness, Prepare ye the way of the Lord, make his paths straight.
He compares it with this: