Covenant is a solemn promise, an oath. It had responsibilities/terms, promises/blessings/privileges and consequences/curses - words which were often spoken out or written down.The most powerful of covenant is the blood covenant. The blood covenant ceremony was to announce the 'terms' or words of the covenant, and then to ratify/seal the covenant. It is ratified (comes into effect) and is sealed with blood - meaning life for life. This covenant is backed up by your life and any violation of this covenant will cost life. The one making a blood covenant does so at the expense of life.