Wednesday Night Services

Are the covenants of Israel relative to us today? Paul states that these saints were once strangers from the covenants (plural) of promise, the ones made to Israel in the Old Testament. What are these covenants and how are they relevant to us today? Also, Paul looks at the devil's call sign of getting people to focus on one single trait of a person and decide on that basis if they are good or evil, but this is not God's way.