How doth the Spirit apply to us the redemption purchased by Christ?

Answer

The Spirit applieth to us the redemption purchased by Christ, by working faith in us (; ; ), and thereby uniting us to Christ, in our effectual calling (; ).

Read the 5 proof texts (KJV)

Ephesians 1:13-14: ¹³In whom ye also [trusted], after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise, ¹⁴Which is the earnest of our inheritance until the redemption of the purchased possession, unto the praise of his glory.
John 6:37,39: ³⁷All that the Father giveth me shall come to me; and him that cometh to me I will in no wise cast out. ³⁹And this is the Father's will which hath sent me, that of all which he hath given me I should lose nothing, but should raise it up again at the last day.
Ephesians 2:8: For by grace are ye saved through faith; and that not of yourselves: [it is] the gift of God:
Ephesians 3:17: That Christ may dwell in your hearts by faith; that ye, being rooted and grounded in love,
1 Corinthians 1:9: God [is] faithful, by whom ye were called unto the fellowship of his Son Jesus Christ our Lord.