In the Akallabeth, when the Numenoreans begin to covet the unending life of the Eldar and Valar, the Valar give them this warning and exhortation:
The will of Eru may not be gainsaid; and the Valar bid you earnestly not to withhold the trust to which you are called, lest soon it become again a bond by which you are constrained. Hope rather that in the end even the least of your desires shall have fruit. The love of Arda was set in your hearts by Iluvatar, and he does not plant to no purpose. Nonetheless, many ages of Men unborn may pass ere the at purpose is made known; and to you it will be revealed and not to the Valar. (Silm. 265)
Two observations, the first of which is the allusion in this passage (and in the Numenoreans’ earlier statement to the Valar that “of us is required a blind trust, and a hope without assurance… yet we also love the Earth”) to the three theological virtues of Faith, Hope, and Love. The second is the way the relationship between the Eldar, the Valar, and Men closely models the one 1 Peter 1:10-12 describes between the Old Testament prophets, the angels, and the New Testament Christians:
Of which salvation the prophets have enquired and searched diligently, who prophesied of the grace that should come unto you… Unto whom it was revealed, that not unto themselves, but unto us they did minister the things, which are now reported unto you by them that have preached the gospel unto you with the Holy Ghost sent down from heaven; which things the angels desire to look into.