New Anointing of the Church

There is and has been within the Church a notion that the Church (gentile and Israelite) replaced the Israelite people as God's chosen people. Let's assume this is true, but let's use I Samuel as model. That is, when Saul "lost" his anointing from God, and gave it to David, how did David treat Saul thereafter? Simply, he gave him his due as King as long as he claimed it, while serving the Lord himself as he was able. I think that works well, no matter what your take is on promises filled and unfulfilled with the Israelite people. Until they as a nation accept Christ as Lord, I give them deference as God's chosen people. And when they do accept Him, they will again be God's chosen people! But I will seek the Lord for guidance, not the state of Israel (which is incidentally what the state of Israel was / is supposed to do itself anyways).