To understand Christianity, you must understand what the Old Testament reveals to us; for Christianity is a by-product of the covenant God made with Abraham – around 2,000 B.C. – through which Judaism and then Christianity were born.
Remember, morality is God’s standard, not humankind’s standard. So it is important that we understand the process that God used to bring us his wisdom, truth and historical perspective.
Good teaching gains its authority from having consistent and repeated support from multiple scriptural sources, and it builds a firm base for our unity and our confidence in Christ.
The covenants are thus fulfilled through the teamwork of the whole Trinity; otherwise the Gospel is dead and ineffective - as the Apostle Paul explains in First Corinthians 15:12-17: