Believers can strengthen the hands of the wicked by approving of their works or remaining silent concerning their God’s view of those wicked works.
Sin causes a man's strength to fail. On the contrary, "the way of the LORD is strength to the upright." Man's choice to sin will eradicate his strength.
Solomon's mother advised him not to give his strength unto women. He ignored this advice and his wives turned away his heart after other gods.
Perceived strength can be one’s own worst enemy. After all, it leads people to think that they are more powerful and capable than they really are.
Man must spend his strength on things that matter. In doing so, we must focus our efforts upon the right things while working through and by God's power.
