Revelation 3:7:

And to the angel of the church in Philadelphia write; These things saith he that is holy, he that is true, he that hath the key of David, he that openeth, and no man shutteth; and shutteth, and no man openeth;

See also:

Objection: We Cannot Demand Healing from God Because God Is Sovereign
Objection: Faith Preachers Are Trinity-Denying Heretics Because They Teach That Jesus Died Spiritually