You don't have to be a cessationist to know that giving false prophecy makes you a false prophet.

When someone claims, “God told me,” how can you be sure?

Ever since the church began, false prophets have infiltrated congregations, leading others astray by denying Christ’s power and abusing God’s grace as an opportunity for immorality. In his epistle, Jude made sure his readers would be able to recognize “these people” by issuing three charges again...