The light of the body is the eye; if therefore thine eye be single, thy whole body shall be full of light.
But if thine eye be evil, thy whole body shall be full of darkness. If therefore the light that is in thee be darkness, how great is that darkness!
No man can serve two masters; for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon. Matthew 6: 22-24
You can make any person transparent by looking at their vision or purpose. If your vision is clear and pure, your whole being is full of brightness and light and that light will shine on everything.
If your vision is evil, self-serving, and stems from a diseased character and purpose; the evil and darkness in you will overcome and overshadow everything else about you and no brightness (good)
will be able to survive.
You can’t serve two bosses. You will eventually end up hating one or the other; at the very least preferring one over the other. By the same token- you can’t serve God AND money; it’s either one or the other.