A righteous person who compromises or falls to wicked pressure does not just harm themselves — they corrupt a source that others were depending on. A 'troubled fountain' and 'corrupt spring' are both images of something that should refresh but now harms. Our righteousness is not merely personal — others depend on it.
Memory phrase: Stand firm. Do not give way.
Talk about it: Why does it matter when a good and righteous person gives in and does wrong?
Prayer: God, help me stand firm and not give in to doing wrong.