You will be for me a kingdom of priests and a holy nation

Exodus 19:1-15
You yourselves have seen what I did to Egypt, and how I carried you on eagles’ wings and brought you to myself.
if you obey me fully and keep my covenant, then out of all nations you will be my treasured possession. Although the whole earth is mine, you will be for me a kingdom of priests and a holy nation.
Go to the people and consecrate them today and tomorrow. Have them wash their clothes and be ready by the third day, because on that day the Lord will come down on Mount Sinai in the sight of all the people.
As God promised, Moses brings God's people to him at Mt Sinai. Here God will establish his covenant with the nation.
Why?
God is like the father of Israel brought them on the eagles' wings.
How great the people who keep God's covenant, them will be kingdom of priests for God and a holy nation. It is an honor to be a priest of God and be a people of God's nation. To be a Christian is an honor.
God is Holy so have to be consecrated ourselves to come to the Lord.
Be ready: do not go near a woman - The male ejection of semen, and female menstruation, rendered a man or woman ritually unclean.
How?
We are the priests of God's kingdom so we have to keep God word and obey God's covenant.