What Is the Milk or Meat of the Word?

How can we determine what is the milk of the word or the meat of the word? What should we be learning from the spiritual milk and meat of the word?  Are the 10 Commandments milk or meat?  Is an advanced understanding of prophecy milk or meat?  Is faith, milk or meat?

Since 1972 Randy has served congregations in California, Colorado, Montana, Idaho, Wyoming, Nevada , Arizona, New Mexico and is now back in Colorado. Randy and his wife Kay have presented "Marriage and Relationship" seminars in United Church of God congregations and Feast sites in the US and other parts of the world. They also implemented the "Deuteronomy 6 Youth Instruction lessons and Family Guides" for the United Church of God. Randy is currently retired - but serves as an associate pastor for the Albuquerque congregation, and as an elder in Colorado Springs..