The way that one lives provides testimony and witness. To witness and endure life's various trials, we must have faith in who and what we are.
Abraham is the only biblical character singled out as a type of God the Father. He is also the only one to be called 'friend of God,' and is a good model.
The story of Ebed-Melech goes far beyond a historical vignette. His story is an allegory of God's grace to the Gentiles.
Paul refers to the church as 'the Israel of God.' Why not 'the Judah of God'? Why did God not inspire Paul to call the church "the Jacob of God"?
As we participate in the New Covenant, we go through the stages of justification, sanctification, and ultimately glorification as part of Christ's body.
The New Covenant, which writes God's law onto the heart, in no way does away with any aspect of the law. Works do not justify us, they sanctify us.
The witness of the apostles, particularly miraculous healings performed in the name of Jesus Christ, brought them into conflict with the Jewish leaders.
While most understand the Kingdom of God represents God's future rule over mankind, many do not realize it also has past and present aspects.