Fountains and Springs: (Corrupt) of the Natural Heart
Source: TTT
James 3:11
Can both fresh water and salt water flow from the same spring?
Matthew 15:18, 19
But the things that come out of the mouth come from the heart, and these things defile a man. / For out of the heart come evil thoughts, murder, adultery, sexual immorality, theft, false testimony, and slander.