God has chosen us by His preordained and predestined word (Rom. 8:30). Which God decided to do long before the world was formed. (Eph. 1:4,5) 4. According as he hath chosen us in him before the foundation of the world, that we should be holy and without blame before him in love:
5. Having predestinated us unto the adoption of children by Jesus Christ to himself, according to the good pleasure of his will,"
We are chosen when we purposefully and intentionally premeditate our lives in service to do God's will, on earth as it is in heaven, by seeking His kingdom first (Matt. 6:33). This choice is one that will predetermine our place from "called" to "chosen". "For without faith it is impossible to please him, for he that cometh unto God, must believe that He is, and that He is a rewarder of them that diligently seek Him." The "chosen" are those who, walk by the kind of faith that pleases God. "Faith comes by hearing and hearing by the word of God." (Heb. 11:6) It is the substance of things hoped for, the evidence of things not seen. (Heb. 11:1) When God's word shows us the "way", we follow it by this faith, and through the faith it gives us. Then and only then we can know what it means to be chosen. Not because of all the good deeds we do, or because we attend worship regularly. But because we walk by that Faith and no longer walk by what matters to us, but only by what matters to God. (Let us hear the conclusion of the whole matter: Fear God, and keep his commandments: for this is the whole duty of man. Ecc. 12:13)
Those who follow denominational doctrines and traditions of man are not taking heed to the straight and narrow way. They don't even understand the, "one body,and one spirit, even as we are called in one hope of your calling. 5. one Lord, one faith, one baptism, 6. One God and Father of all, who is above all, and through all, and in you all." To be of the one church is to understand that it only includes those who, endeavor to keep the UNITY of the Spirit in the bond of peace, by following the straight path, and do not believe that it is possible for anyone to follow God by being a part of a way that teaches that the one church can be followed by going in every which direction."