"Love does not delight in evil but rejoices with the truth." I Corinthians 13:6
Truth defines two important things:
The first thing it defines is what is right.
Were you born into this world knowing right from wrong?
Me neither. I had to be taught what is right and what is wrong. There was a considerable amount of punishment required to accomplish the task.
The same was true of my children and from what I hear, their children required some training as well.
Since training in right and is necessary who should be the one to do it?
It needs to be someone who loves you and someone who already knows what is right. Who fits that description better than parents? And really good parents teach their children God's truth as recorded in God's Word.
As Moses was preparing to lead God's people into the Promises Land, God commanded him to give these instructions to His People: