When they shall go, I will spread my net upon them; I will bring them down as the fowls of the heaven; I will chastise them, as their congregation hath heard.
When they shall go - to seek aid from this or that foreign state.
I will spread my net upon them - as on birds taken on the ground (Ezekiel 12:13); as contrasted with --
I will bring them down as the fowls of the heaven - namely, by the use of missiles.
I will chastise them, as their congregation hath heard - namely, by my prophets, through whom I threatened 'chastisement' (Hosea 5:9; 2 Kings 17:13-18).