The heart is deceitful above all things, and desperately wicked; who can know it? I, THE LORD, search the heart and test the mind, even to give every man according to his ways, according to the fruit of his doings. Jeremiah 17:9-10

For where your treasure is, there your heart will be also. Matthew 6:21

Do not be deceived, God is not mocked; for whatever a man sows, that he will also reap. For he who sows to his flesh will of the flesh reap corruption, but he who sows to the Spirit will of the Spirit reap Everlasting Life. Galatians 6:7-8