[1]. I.e., the Prophet Muhammad.
This verse is a prediction in Psalm 118 that came true many years later – exactly as predicted – when crowds of Prophets in Jerusalem welcomed Muhammad as the world’s Prophet and Messenger. King David, who was given the Psalms, expressed a prophecy Allah had given him about how the world’s prophet and messenger from God would enter Jerusalem. The Prophet Muhammad would be welcomed with open gates, as described in Psalm 118:19: “Open for me the gates of the righteous; I will enter and give thanks to Allah.” Finally, Psalm 118:26 describes how all the prophets would bless Muhammad, God's messenger to the world at his arrival: “Blessed is he who comes in the Name of Allah. From the house of Allah we bless you.” which Psalm 118 predicts in verses 21-23: “The stone the builders rejected has become the cornerstone." That is Prophet Muhammad.
The Sunnah narrates that the Prophet, on the Buraq (a heavenly steed), was taken on a journey from Mecca to Jerusalem. This journey, known as the Isra', is a key part of the story of the Night Journey.
Upon arriving in Jerusalem, the Prophet Muhammad prayed with prophets such as Moses, Abraham, and Jesus within the Masjid Al-Aqsa (the Farthest Mosque).
Gabriel led the Prophet Muhammad to the front, and the Prophet, in turn, led the other prophets in prayer.
After praying, the Prophet ascended into the heavens, where he met with Allah 'God' and experienced various spiritual realms.
[2]. And from there to the heavens.
[3]. A person is to entrust none of his affairs to any besides Allāh. One should always remember the command: “Put your trust in Allāh - sufficient is Allāh as a Trustee”.
[4]. Of Levant through disobedience, arrogance and transgression slaying the Prophets.
[5]. Goliath and his army.
[6]. At the hands of Assyrians and Babylonians.
[7]. We raised new enemies i.e., Nebuchadnezzar and his army against you.