Orthodox Apologetics

Exodus 20:2-3, Deuteronomy 5:6-7
I am the LORD thy God: Thou shalt have no other gods before me.
Matthew 6:24 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.

Proverbs 23:26 My son, give me thine heart.

Matthew 6:21, Luke 12:34 For where your treasure is, there will your heart be also.