Salam
Regarding 58:23
هُوَ اللَّهُ الَّذِي لَا إِلَٰهَ إِلَّا هُوَ الْمَلِكُ الْقُدُّوسُ السَّلَامُ الْمُؤْمِنُ الْمُهَيْمِنُ الْعَزِيزُ الْجَبَّارُ الْمُتَكَبِّرُ ۚ سُبْحَانَ اللَّهِ عَمَّا يُشْرِكُونَ | He is Allah—there is no god except Him—the Sovereign/King, the All-holy, the All-Peace, the Securer, the All-conserver, the All-mighty, the All-compeller, and the All-magnanimous. Clear is Allah of any partners that they may ascribe [to Him]! | Al-Hashr : 23
Another way to translate it:
He is God, there is no God but Him, the Holy King, The Peace, The Securer, the Preserver/Guardian, The Honorable/Mighty, The Compeller, the Magnified, Glorified is God from what they associate.
So we see God the Holy King. Why would he take Authority, it's because he is the Peace, and such seeks to secure it in the land, and preserves his creation and is mighty, the next title is is definitely linked to Islam with the title, "The Compeller".
People sometimes argue against Islam and are saying God is not forcing people to views, would not do that, lets them decide, but we see wisdom here of God being the True king, because he needs to secure his creation from harming each other, and creating chaos on earth that cannot be repaired. And such he compels them to obey him and take him as the holy King and true King, as a means of acquiring inner peace, but also religion wise, collectively, wants them as a community, coming together, to secure the land from havoc of evil humans and Jinn. This is the only way he can preserve human honor and dignity and hence does not want us all doing decisions and learning from it. He wants peace on earth, not to learn by causing havoc, that we did things wrong.
All security and peace, is due to his forces repelling evil forces.
وَإِذَا قِيلَ لَهُمْ لَا تُفْسِدُوا فِي الْأَرْضِ قَالُوا إِنَّمَا نَحْنُ مُصْلِحُونَ | When they are told, ‘Do not cause havoc in the earth,’ they say, ‘We are only reformers/setters aright/peace makers!’ | Al-Baqara : 11
أَلَا إِنَّهُمْ هُمُ الْمُفْسِدُونَ وَلَٰكِنْ لَا يَشْعُرُونَ | Behold! They are themselves the agents of havoc, but they do not perceive. | Al-Baqara : 12
وَإِذَا قِيلَ لَهُمْ آمِنُوا كَمَا آمَنَ النَّاسُ قَالُوا أَنُؤْمِنُ كَمَا آمَنَ السُّفَهَاءُ ۗ أَلَا إِنَّهُمْ هُمُ السُّفَهَاءُ وَلَٰكِنْ لَا يَعْلَمُونَ | And when they are told, ‘Believe like the people who have believed,’ they say, ‘Shall we believe like the fools who have believed?’ Behold! They are themselves the fools, but they do not know. | Al-Baqara : 13
فَهَزَمُوهُمْ بِإِذْنِ اللَّهِ وَقَتَلَ دَاوُودُ جَالُوتَ وَآتَاهُ اللَّهُ الْمُلْكَ وَالْحِكْمَةَ وَعَلَّمَهُ مِمَّا يَشَاءُ ۗ وَلَوْلَا دَفْعُ اللَّهِ النَّاسَ بَعْضَهُمْ بِبَعْضٍ لَفَسَدَتِ الْأَرْضُ وَلَٰكِنَّ اللَّهَ ذُو فَضْلٍ عَلَى الْعَالَمِينَ | Thus they routed them with Allah’s will, and David killed Goliath, and Allah gave him kingdom and wisdom and taught him whatever He liked. Were it not for Allah’s repelling the people, some of them by some, the earth would surely have been corrupted/in a state of havoc; but Allah is gracious to the worlds | Al-Baqara : 251
الَّذِينَ أُخْرِجُوا مِنْ دِيَارِهِمْ بِغَيْرِ حَقٍّ إِلَّا أَنْ يَقُولُوا رَبُّنَا اللَّهُ ۗ وَلَوْلَا دَفْعُ اللَّهِ النَّاسَ بَعْضَهُمْ بِبَعْضٍ لَهُدِّمَتْ صَوَامِعُ وَبِيَعٌ وَصَلَوَاتٌ وَمَسَاجِدُ يُذْكَرُ فِيهَا اسْمُ اللَّهِ كَثِيرًا ۗ وَلَيَنْصُرَنَّ اللَّهُ مَنْ يَنْصُرُهُ ۗ إِنَّ اللَّهَ لَقَوِيٌّ عَزِيزٌ | —those who were expelled from their homes unjustly, only because they said, ‘Allah is our Lord.’ Were it not for Allah’s repelling the people, some of them by some; ruin would have befallen the monasteries, churches, synagogues and mosques in which Allah’s Name is much remembered. Allah will surely help those who help Him. Indeed Allah is all-strong, all-mighty. | Al-Hajj : 40
الَّذِينَ إِنْ مَكَّنَّاهُمْ فِي الْأَرْضِ أَقَامُوا الصَّلَاةَ وَآتَوُا الزَّكَاةَ وَأَمَرُوا بِالْمَعْرُوفِ وَنَهَوْا عَنِ الْمُنْكَرِ ۗ وَلِلَّهِ عَاقِبَةُ الْأُمُورِ | Those who, if We granted them power in the land, will maintain the prayer, give the zakat, bid what is right and forbid what is wrong. And with Allah rests the outcome of all matters. | Al-Hajj : 41
وَالَّذِينَ كَفَرُوا بَعْضُهُمْ أَوْلِيَاءُ بَعْضٍ ۚ إِلَّا تَفْعَلُوهُ تَكُنْ فِتْنَةٌ فِي الْأَرْضِ وَفَسَادٌ كَبِيرٌ | As for the faithless, some of them are awlya of others (of them). Unless you do it, there will be strife in the land and great havoc. | Al-Anfaal : 73
لَقَدْ أَرْسَلْنَا رُسُلَنَا بِالْبَيِّنَاتِ وَأَنْزَلْنَا مَعَهُمُ الْكِتَابَ وَالْمِيزَانَ لِيَقُومَ النَّاسُ بِالْقِسْطِ ۖ وَأَنْزَلْنَا الْحَدِيدَ فِيهِ بَأْسٌ شَدِيدٌ وَمَنَافِعُ لِلنَّاسِ وَلِيَعْلَمَ اللَّهُ مَنْ يَنْصُرُهُ وَرُسُلَهُ بِالْغَيْبِ ۚ إِنَّ اللَّهَ قَوِيٌّ عَزِيزٌ | Certainly We sent Our apostles with manifest proofs, and We sent down with them the Book and the Balance, so that mankind may maintain justice; and We sent down iron, in which there is great might and uses for mankind, and so that Allah may know those who help Him and His apostles by the Unseen/Hidden. Indeed Allah is all-strong, all-mighty. | Al-Hadid : 25
Thus we see the title of God "Al-Momin" is linked to why he has made himself a King to humans. And we see same wisdom of why he would appoint kings on his behalf in order to establish security and peace in the land as well as in the souls.
Both are implied as Allah (swt) wants souls to be at peace and hence will guide him towards himself and secure them from deviation, but also, that Allah (swt) wants security and peace in the land, and his light and religion is necessary for that.