In contemporary English parlance, to call someone a “man” or “woman of God” substantially means that individual is “godly” or “pious.” As such, the phrase is a descriptor of a person’s moral or religious standing in relation to some perceived measure.
In the Hebrew Bible, however, אישׁ (ה)אלהים ([the] man of God) regularly designates a “prophet.” To be sure, these prophets were often “godly” or “pious,” but even here, there were occasional exceptions to this behavior (e.g., 1 Kgs 13). Rather, when the Hebrew Bible applies this same phrase to David, it fits him into the framework of the broader tradition of the prophet as Yahweh’s representative (Neh 12:24, 36; 2 Chron 8:14). In these particular texts, David’s status as an אישׁ אלהים (man of God) revolves around his plans for the temple’s administration. Even so, scarcely can at least the Davidic psalms be separated from vocation as a royal אישׁ אלהים (man of God).1
In due order within The City of God’s longer discussion of Hannah’s prayer at Samuel’s dedication,1 Augustine arrives at the clause, “[a]nd [he] shall exalt the horn of His Christ” (1 Sam 2:10). Here, Augustine ponders:
How shall Christ exalt the horn of His Christ? For He of whom it was said above, “The Lord hath ascended into the heavens,” [1 Sam 2:10 LXX; 4QSama col. 2, line 33] meaning the Lord Christ, Himself, as it is said here, “shall exalt the horn of His Christ.” Who, therefore, is the Christ of His Christ? Does it mean that He shall exalt the horn of each one of His believing people, as [Hannah] says in the beginning of this hymn, “Mine horn is exalted in my God?” [1 Sam 2:1 LXX, Vg.] For we can rightly call all those christs who are anointed with His chrism, forasmuch as the whole body with its head is one Christ.2
Although Augustine does not appear to cite 1 Cor 1:31; 2 Cor 10:17 in developing his interpretation of Hannah’s prayer, these texts may well be reading 1 Sam 2:10 [LXX; 4QSama col. 2, line 33] along a similar, Christological trajectory.3 Boasting is to be in Jesus alone, who has ascended into heaven and with whom the church is united as a “collective person[—as] ‘Christ existing as church-community.’”4
3. See J. David Stark, “Rewriting Prophets in the Corinthian Correspondence: A Window on Paul’s Hermeneutic,” BBR 22, no. 2 (2012): 236–38; J. Ross Wagner, “‘Not Beyond the Things Which Are Written’: A Call to Boast Only in the Lord (1 Cor 4.6),” NTS 44, no. 2 (1998): 283–86, for discussion.