To God, as He looks down upon men, the seal of His Spirit upon their hearts anticipates this full emancipation. He sees already in the redeemed spirit of His children what will be manifest in their glorious heavenly form. The same token is to ourselves as believing men the "earnest of our inheritance." Note that at this point the apostle drops the "you" by which he has for several sentences distinguished between Jewish and Gentile brethren. He identifies them with himself and speaks of "_our_ inheritance." This sudden resumption of the first person, the self-assertion of the filial consciousness in the writer breaking through the grammatical order, is a fine trait of the Pauline manner.[60]
_Arrhabon_, the _earnest_ (_fastening penny_), is a Phoenician word of the market, which passed into Greek and Latin,--a monument of the daring pioneers of Mediterranean commerce. It denotes the part of the price given by a purchaser in making a bargain, or of the wages given by the hirer concluding a contract of service, by way of assurance that the stipulated sum will be forthcoming. Such pledge of future payment is at the same time a bond between those concerned, engaging each to his part in the transaction.
The earnest is the seal, and something more. It is an instalment, a _token in kind_, a foretaste of the feast to come. In the parallel passage, Romans viii. 23, the same earnest is called "the firstfruit of the Spirit." What the earliest sheaf is to the harvest, that the entrance of the Spirit of God into a human soul is to the glory of its ultimate salvation. The sanctity, the joy, the sense of recovered life is the same in kind then and now, differing only in degree and expression.
Of the "earnest of the Spirit" St Paul has spoken twice already, in 2 Corinthians i. 22 and v. 5, where he cites this inner witness to assure us, in the first instance, that God will fulfil to us His promises, "how many soever they be"; and in the second, that our mortal nature shall be "swallowed up of life"--assimilated to the living spirit to which it belongs--and that "God has wrought us for this very thing." These earlier sayings explain the apostle's meaning here. God has made us His sons, in accordance with His purpose formed in the depths of eternity (ver. 5). As sons, we are His heirs in fellowship with Christ, and already have received rich blessings out of this heritage (ver. 11). But the richest part of it, including that which concerns the bodily form of our life, is still unredeemed, notwithstanding that the price of its redemption is paid.