What is the Implementation of God's Call?

We are told that God calls, but is there any denomination which describes the nature of that call? >9 God is faithful, by whom ye were called unto the fellowship of his Son Jesus Christ our Lord - 1 Cor.1:9. 24 But unto them which are called, both Jews and Greeks, Christ the power of God, and the wisdom of God - 1 Cor.1:24. For instance, if it is a voice in our mind , what does it say? Or if it's an urge, what are we urged to do? **Summarizing the answers** - God's saving call is the Gospel message we'd probably already heard. The difference is that God opens our spiritual ears to accept that call.