two-sided. First reading this statement made me think of a two-faced person. Not really a positive impression. Of course, like anything that man has touched of God's original creation, man has warped the true meaning. For God's Word to be two-sided, it means that God gives both an explicit and an implicit direction. There is both a positive and negative aspect to His commandments.
The explicit direction is usually stated in the negative, "do not" or "thou shalt not". The "not" indicating the negative aspect of what is not allowed. The implicit direction is the positive aspect. If I am not to do such and such, then I am to do such and such.
For example, the commandment "Do not murder" means explicitly do not take another's life deliberately. Do not seek through your actions to cause the ending of another's life. Jesus in Matthew 5:21-22 explained this explicit command as to its spiritual meaning. (Covered in the Word of God is spiritual, governing the internal and external acts of man). This explicit command, the negative aspect, issues from the authority of God as the Creator and Sustainer of Life and it is only His will when a life is to end. When man rejects God's authority over life and takes life, this is murder.
The implicit command, the positive aspect, means you are to do all that is necessary to preserve and protect life as you uphold God's authority as Creator and Sustainer of life. So, you and I are to seek actions and behaviors that preserve and protect life, all human life.
Another example would be the explicit commandment, "Do not bear false witness against your neighbor." Bearing false witness explicitly involves deliberately and knowingly lying or deceiving another about your neighbor. The implicit aspect of this command is to take all due diligence to make sure that your words about your neighbor are above reproach, genuine and true.
As a child being taught the Ten Commandments, my overall impression is all that I am not supposed to do. That part is true. But what a freedom in Christ to be instructed in all that I can do to His glory and for the benefit of my neighbors. It's not about being a "good" person, it is about being an obedient follower of all of God's Word.