J.R. Lucas on Knowing God as a PersonFreedom and Grace: Essays (SPCK: 1976), p. 26.
If God is a person, it follows that our relations with God are personal relations. … God is not a Thing. Nor is he an Idea. If we were Platonists, we might believe that there was some technique whereby we could emancipate ourselves from the shackles of our earthly existence and put ourselves on a level with the Forms. But God, being a living spirit, has a different sort of existence from the dead timelessness of the Forms. Knowledge of him is not like knowledge of mathematical truths, which any man can set himself to come to know, but like knowledge of persons, and is essentially an interchange between two parties, requiring not only our wish to know, but his willingness to be known.