Surah An-Nahl 16:2
يُنَزِّلُ ٱلْمَلَـٰٓئِكَةَ بِٱلرُّوحِ مِنْ أَمْرِهِۦ عَلَىٰ مَن يَشَآءُ مِنْ عِبَادِهِۦٓ أَنْ أَنذِرُوٓا۟ أَنَّهُۥ لَآ إِلَـٰهَ إِلَّآ أَنَا۠ فَٱتَّقُونِ
He sends down the angels, with the inspiration [i.e., revelation] of His command, upon whom He wills of His servants, [telling them], "Warn that there is no deity except Me; so fear Me."
Translation: Saheeh International
Tafsir
He sends down the angels namely Gabriel with the Spirit with the Revelation of His command by His will to whomever He will of His servants and these are the prophets saying that an is explicative Warn threaten the disbelievers with chastisement and make them aware that there is no God save Me so fear Me fear Me.
Excerpt from Tafsir al-Jalalayn, commentary on 16:2, via Quran.com. The reader has the full commentary and 9 more tafsirs.