When we are called by God means we have been chosen by God for certain purposes and a vessel (our calling) has been given unto us that we must maintain without blemish till Christ Jesus Comes. Obedience to this calling enables us to live a fulfilling life on earth. A life that glorifies God and honors His will. It takes our determination and the help of Holy Spirit to fulfill this mandate and to see ourselves as different from the world. Remember 2 peter 3:14 "wherefore, beloved, seeing that ye look for such things, be diligent that ye may be found of him in peace, without spot, and blameless. May God help us All. Amen!