Tous ses camarades lui firent la conduite = All his companions saw him off.
Confesser
C’est le diable à confesser = It is terribly hard to do.
Confession
On lui donnerait le bon Dieu sans confession = They would trust him to any extent (because of his saintly appearance).
Connaissance
En connaissance de cause = Knowingly.
Je suis en pays de connaissance = I am among people I know, among old friends.
Connaître
Il est connu comme le loup blanc = He is known to everybody.