SINCE it is the Word and Spirit that regenerate, one must needs receive them; therefore the Lord makes His Spirit available wherever He has put His Word (consider Genesis 1:1-3). This is one of the reasons those really appointed by Him to preach the Word are given substantial measure of His Spirit (Luke 24:47,49; Acts 1:8; 2:1-4; John 3:34; Acts 10:38). Therefore the words such people speak are “spirit” because of the Spirit of God in them (John 6:63; compare Galatians 3:5). This is the reason those who heard and received Christ’s, or the apostles’ word and believed in God that sent them were quickened (John 5:21,25-26; 1 Corinthians 15:1-2; 1 Thessalonians 2:13).
But receiving God’s Word with His Spirit to be born-again entails, (I) yielding to conviction that one is needy, as did Nicodemus (John 3:1-2 consider Psalm 51:3b; 73:21; Acts 2:37); (ii) repenting, rejecting and emptying oneself (through confession) of one’s sins (e.g. Psalm 51:1-17); (iii) manifesting saving faith in the sacrifice of Christ (Acts 20:21). So the Lord, knowing the role of His Word and Spirit challenged Nicodemus into receiving His Word (John 3:11-12).