Al-i imran 52-53:

•  İsa(as), onların hakikatı reddettiklerinin farkına varınca :' Kim Allah(cc) yolunda benim yardımcılarım olacak?' dedi. Havariler:' Biz Allah(cc) yolunda senin yardımcıların olacagız(أَنصَارُ اللّهِ). Biz Allah(cc) inanırız. Sen de şahit ol, biz müslümanlardanız' dediler. Devamında:' Ey Rabbimiz, indirdiklerine biz inanıyor ve resulune tabii oluyoruz. O halde bizi hakikate şahitlik edenlerle bir tut' dediler.
  (
  Those people who help establish Islam have been called Allah's helpers. In order to understand its significance, it should be kept in view that Allah has taken upon Himself to persuade human beings to adopt Islam of their free will, for He does not force His will on man in those spheres of his life in which He has granted him freedom of action but likes to convince him by reason and admonition. As it is the work of Allah to bring the people to the right way by admonition and advice, He calls those people who exert their utmost to establish Islam "His helpers and companions:" This is indeed the highest position that a servant of Allah can aspire to achieve. For man's position is merely that of a servant when he is engaged in praying, fasting and other kinds of worship, but he is elevated to the high and unique position of God's companion and assistant when he is exerting for the establishment of the way of Allah. And this is indeed the loftiest position of spiritual attainment, to which a man can aspire in this world. 
  )