"Human plans, no matter how wise or well advised, cannot stand against the Lord." Proverbs 21:30
How does that grab you? I guess it depends on who you are. If you're the one making the plans then you've just been reminded that you are human. If so, then don't bother to make plans that try to stand against the Lord, right? You'll basically be wasting your time.
If you love the Lord and happen to be the one having "not so good" plans formulated against you--don't worry. He's got you covered. Just stay under His umbrella, watch and pray. Pray for yourself and for the "plan maker".
Whew! That's a relief.