In the Old Testament someof the laws God gave to Israel through Moses, are strange, and hard to understand why they were given to the people. One of them is in the book of Leviticus and is repeated in Deuteronomy.
Leviticus 19:19. ‘You are to keep My statutes. You shall not breed together two kinds of your cattle; you shall not sow your field with two kinds of seed, nor wear a garment upon you of two kinds of material mixed together.
I believe the intent of the law was to be a physical picture or illustration to the nation of Israel that God desires that He is most important in our life, that we seek Him only, that we worship Him only, that we love Him only, and that we serve Him only. God does not like mixtures in His people in their love for Him. In the history of Israel as soon as they were not loving God only they would soon fall away from Him, and once the slide away from God started it ended in disaster. As people we are not capable of a divided heart, we will go one way or the other.
Luke 16:13 No servant can serve two masters; for either he will hate the one and love the other, or else he will be devoted to one and despise the other. You cannot serve God and money.”
Our heart is easily enticed by the things around us in the world, and most of us are very careless in guarding our heart and it’s affections, and like the nation of Israel, once the slide away from God begins it gains momentum and soon we are far away from the Lord.
Proverbs 4:23 Watch over your heart with all diligence,
For from it flow the springs of life.
The beginning of the drift away from God is subtle and we usually don’t even notice. When we do become aware of the disease of worldliness that has infected our heart we no longer care and have no motivation to do anything about it, until we crash and a crisis of some sort happens.
Revelation 2:4-5 But I have this against you, that you have left your first love. Therefore remember from where you have fallen, and repent and do the deeds you did at first; or else I am coming to you and will remove your lampstand out of its place—unless you repent.