Augustine of Hippo
The apostle refers to “the Israel of God” (Gal. 6:16). Not all who descend from Israel are true Israelites (Rom. 9:6), for there exists an Israel based on physical lineage. This is evident in the call to “See Israel according to the flesh” (1 Cor. 10:18). The true children of God are not defined by physical descent; rather, the children of the promise are recognized as the true descendants (Rom. 9:8). Hence, at a time when His people are purified, like chaff separated from the wheat (Matt. 3:12), and when Israel embodies sincerity and truth (Jn. 1:47), the foremost among them will reflect His majesty and strength within the heavenly realms. He will not return alone to execute judgment but will come alongside the elders of His people (Isa. 3:14), whom He assured would occupy thrones in judgment (Matt. 19:28), and who will also judge the angels (1 Cor. 6:3). These elders symbolize the clouds.