When some build their house on sand, it is beyond your control. You can wait for the storm, and be there to help them when the storm is over. You can offer them shelter, and food, and water. You can offer them all the things you treasure? You can speak out against all those that gave, and say,” They did not do enough to help them who’s house fell” which was built on sand. You may find yourself having to be the one that helps the ones, that care nothing about you, or the Truth you built your house on? They may leave your house a mess, like their own, and look to you for more, when you have given your all? What you may find is why their house fell, and you may need to ask God for forgiveness, for your question to Him, “Where were You in their storm?”
When God leads you to help someone, you can.
When you choose to go it on your own, it will be for vain reasons.