What does the Bible say about blaspheming the holy spirit?

Bible Topic · WEB

The Bible warns that blaspheming the Holy Spirit is a grave, willful rejection of God's clear saving testimony to Christ, yet it also calls repentant sinners to trust God's abundant mercy. In Matthew 12:31-32 and Mark 3:28-30, Jesus spoke this warning when religious leaders knowingly attributed his Spirit-empowered works to Satan. This is not an anxious believer's unwanted thought or a sin confessed with sorrow, but settled, hardened opposition to the truth. Hebrews 6:4-6 likewise warns against deliberate apostasy after profound exposure to God's grace. Christians should therefore resist hardening their hearts, as Acts 7:51 cautions, and rest in Christ's promise that all who come to him in faith are received and forgiven.