“Who hath saved us, and called us with an holy calling, not according to our works, but according to his own purpose and grace, which was given us in Christ Jesus before the world began.” (2 Timothy 1:9)
Notice the divine order given here by the Holy Spirit of God. See that God first saved us then he called us. Salvation comes before our calling.
The experience of our salvation is only the manifestation of what God the Father had purposed, that is, an eternal covenant of Grace (Ezekiel 36:11). It is only the application of what God the Son has already accomplished by his one offering for sin (Hebrews 10:14).
Therefore Paul says “even when we were dead in sins (God) hath quickened us together with Christ…” (Ephesians 2:5).
All who reverse this order are deceived and know not the truth. But we who are called by the effectual call of God know that all our salvation was given of the Father in Christ Jesus before the world began. Salvation was accomplished by the Son at Calvary, and according to his exceeding great power and grace, it has been applied to our hearts.