Do not cast pearls before swine. What this means is that if you have something precious from God or a good understanding of something about God, then there will always be those who rush to trample what treasure you have in your heart. Do not bring this treasure out for them if you can help it.
If we are asked to give an account for what we teach (which hopefully contains pearls), we should support that because we taught for encouragement not condemnation. But if you are opposed by swine, be careful about introducing new things that they will unnecessarily trample on. Be careful not to open these up to a bigger sin if it can be helped. Be wise for their sake.