Matthew 12:30-32

Young's Literal Translation

³⁰ `He who is not with me is against me, and he who is not gathering with me, doth scatter.

³¹ Because of this I say to you, all sin and evil speaking shall be forgiven to men, but the evil speaking of the Spirit shall not be forgiven to men.

³² And whoever may speak a word against the Son of Man it shall be forgiven to him, but whoever may speak against the Holy Spirit, it shall not be forgiven him, neither in this age, nor in that which is coming.