'Every aspect of God's reality and work, without exception, is mystery. The eternal Trinity; God's sovereignty in creation, providence, and grace; the incarnation, exaltation, present reign and approaching return of Jesus Christ; the inspiring of the Holy Scriptures; and the ministry of the Spirit in the Christian and the Church - each of these (to look no further) is a reality beyond our full fathoming, just as the cross is. And theories about any of these things which used human analogies to dispel the dimension of mystery would deserve our distrust, just as rationalistic theories about the cross do.'
JI Packer, 'What Did the Cross Achieve?' in Celebrating the Saving Work of God, p.89.