“Insert the Urim and Thummim into the sacred chestpiece so they will be carried over Aaron’s heart when he goes into the Lord’s presence. In this way, Aaron will always carry over his heart the objects used to determine the Lord’s will for his people whenever he goes in before the Lord.” (Exodus 28:30, NLT).
One of the primary priestly functions was to determine God’s will for His people. The priest’s chestpiece provided a container for the Urim and Thummim.The Hebrew words descibing the chestpiece literally meant “chestpiece for decision.”
The Urim and Thummim were apparently a pair of stones that were thrown down to get a yes or no answer from God. No physical description of these objects exists but their use is further explained in several other scriptures including Numbers 27:21, Deuteronomy 33:8, 1 Samuel 28:6, Ezra 2:63, and Nehemiah 7:65.
Today, we don’t have to use games of chance to find God’s will. We can find God’s will first hand–directly from Him–because God has given us His Spirit as a counselor and guide: “He is the Holy Spirit, who leads into all truth…you know him because he lives with you now and later will be in you” (John 14:17).
While the Spirit of God has always been with God’s people, now (after the resurrection of Jesus) He resides in God’s people and leads us, individually and collectively, in the way of the Truth, which is God’s will.
You are controlled by the Spirit if you have the Spirit of God living in you.. (Romans 8:9, NLT)