Over the years God graciously moved me from an ultra Pre-Trib Dispensational Pre-Mil position to where I am now. Where am I now? The book of Hebrews is a good starting point. The Old Covenant has passed away - gone, finished, kaput and the New Covenant is in place. The Lord Jesus Christ is the fulfillment of all Covenants. He is the Alpha and the Omega, the Beginning and the End. He is the seed of Abraham and the fulfillment of all the Old Testament prophecies and all who believe and follow Him are the children of Abraham and heirs of all Covenant promises. We have been in the "last days" since His first advent and are looking for the "last day" - the Blessed Hope and glorious appearing of our Lord Jesus Christ. We are the true Israel of God!!
The following article: Justification by Faith and the Israel of God best sums up what I believe. Check it out: