The Call of Salvation !
There's a Call of God associated with or accompanies Salvation, its particular to the Chosen of God. Paul writes about it in at least a couple places in his epistles, the first we will notice is in 1 Cor 1:9,18-24, 26,28
9 God is faithful, by whom ye were called unto the fellowship of his Son Jesus Christ our Lord.
18 For the preaching of the cross is to them that perish foolishness; but unto us which are saved it is the power of God. 19 For it is written, I will destroy the wisdom of the wise, and will bring to nothing the understanding of the prudent. 20 Where is the wise? where is the scribe? where is the disputer of this world? hath not God made foolish the wisdom of this world? 21 For after that in the wisdom of God the world by wisdom knew not God, it pleased God by the foolishness of preaching to save them that believe. 22 For the Jews require a sign, and the Greeks seek after wisdom: 23 but we preach Christ crucified, unto the Jews a stumblingblock, and unto the Greeks foolishness; 24 but unto them which are called, both Jews and Greeks, Christ the power of God, and the wisdom of God.
26 For ye see your calling, brethren, how that not many wise men after the flesh, not many mighty, not many noble,are called: 27 but God hath chosen the foolish things of the world to confound the wise; and God hath chosen the weak things of the world to confound the things which are mighty; 28 and base things of the world, and things which are despised, hath God chosen, yea, and things which are not, to bring to nought things that are:
This call in vs 24 comes to the specifically called with power, as in this Call Christ is not only the wisdom of God, but also the Power of God, for Christ's Power in the Person of the Holy Spirit is active in this call, to them that are called and chosen Vs 27-28. The word chosen in Vs 27-28 is the same word found in Eph 1:4
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:
This choosing is an deliberate act of God with Salvation as His end for the called.