'Manifestations' in the Bible
And the Lord said to Aaron, You and your sons and your father's house with you shall bear and remove the iniquity of the sanctuary [that is, the guilt for the offenses which the people unknowingly commit when brought into contact with the manifestations of God's presence]. And you and your sons with you shall bear and remove the iniquity of your priesthood [your own unintentional offenses].
But concerning spiritual manifestations, brethren, I do not wish you to be ignorant.
Follow after love, and be emulous of spiritual manifestations, but rather that ye may prophesy.
It is the same with you. Since you are eager for manifestations of the Spirit, seek to abound in order to strengthen the church.
[Besides this evidence] it was also established and plainly endorsed by God, Who showed His approval of it by signs and wonders and various miraculous manifestations of [His] power and by imparting the gifts of the Holy Spirit [to the believers] according to His own will.
But if we [really] are living and walking in the Light, as He [Himself] is in the Light, we have [true, unbroken] fellowship with one another, and the blood of Jesus Christ His Son cleanses (removes) us from all sin and guilt [keeps us cleansed from sin in all its forms and manifestations].