"...who also made us sufficient as ministers of the new covenant, not of the letter but of the Spirit; for the letter kills, but the Spirit gives life." 2 Corinthians 3.6
The true servants of the Holy Spirit of God transmit Spirit to those who are thirsty for the Spirit.
The other "servants" are concerned with imparting empty knowledge of life that imposes deadly burdens. One must be born of the Spirit to have this discernment.