God's people are known by their outward mark - they love God; and the secret cause of their loving God is this: God chose them from before the foundation of the world that they should love Him, and He sent forth the call of His grace so that they were called according to His purpose and were led by grace to love and to fear Him. If that is not the meaning of the text I do not understand the English language. "We know that all things work together for good to them that love God, to them who are the called according to His purpose."