God exercises absolute control over the course of history, summoning messengers from distant lands to execute His grand designs through both natural events and miraculous interventions. The primary approach among commentators is that this divine summons is directed at Cyrus, the King of Persia. God stirs his heart, calling him from the east to conquer the Babylonian empire and bring salvation to the people of Israel. However, other traditions offer different perspectives, suggesting the chosen messenger is either the patriarch Abraham [רש״י] or the future Messianic King who is destined to gather the exiled people [רד״ק בשם אביו].
To illustrate the swiftness of this messenger, he is compared to a bird of prey. The commentators agree that this imagery captures how the chosen leader will arrive rapidly, flying like a swift bird to fulfill God's will and dismantle Babylon [אבן עזרא, רד״ק, מצודת דוד, מלבי״ם, ביאור שטיינזלץ]. Adding a historical layer to this imagery, it is noted that Cyrus actually carried the emblem of a golden eagle on his spear [שד״ל]. Taking a different approach based on the Aramaic language, the term for the bird of prey can also mean counsel. According to this view, God called upon Abraham to share His divine counsel, and the imagery of a migrating bird reflects the speed with which Abraham responded to God's call [רש״י].
The divine summons calls this leader from the east, bringing him from a distant land. In the context of Cyrus, this refers to Persia, which sits to the east of Babylon [מצודת דוד, רד״ק, ביאור שטיינזלץ]. A more precise geographical distinction suggests that the eastern direction describes Cyrus's position relative to Babylon, the empire he is destined to destroy, while the distant land highlights his vast distance from the Land of Israel, the nation he is meant to save [מלבי״ם].
This selected leader acts as a man of counsel, meaning he is the exact individual entrusted with God's own plans [שד״ל]. He is chosen to carry out God's predetermined decree against Babylon [מצודת דוד, רד״ק, שד״ל, ביאור שטיינזלץ] and to pave the way for the rebuilding of the Temple in Jerusalem [מלבי״ם]. In the interpretation where Abraham is the subject, this counsel refers specifically to the Covenant of the Pieces, where God revealed the future of the four exiles and the ultimate redemption to him [רש״י].
God issues a firm, twofold guarantee to ensure the success of His plan. The primary approach among commentators is that God first decreed the events in heaven and announced them through His prophets, and He will now carry them out on earth by bringing ruin to Babylon [מצודת דוד, רד״ק, אבן עזרא, ביאור שטיינזלץ]. Exploring this promise more deeply, the realization of God's plan operates on two distinct levels. One aspect of the promise deals with events that unfold according to the pre-established laws of nature. The other aspect represents a completely new, miraculous creation that operates above the natural order, which God alone initiates and brings to completion [מלבי״ם].