In Genesis 22:13, this signifies with all power as to the truths of faith. (Arcana Coelestia 2832) Horns are mentioned in the Word here and there, and signify the power of truth from good, or, in the opposite sense, of falsity from evil. Here they signify that the spiritual are entangled in external knowledges of the natural with all power as to truth; but are deprived of the power of receiving truth. (Arcana Coelestia 2832)

In Revelation 8:11, this signifies power in speaking, teaching, and writing, consequently, in reasoning and arguing.

'The little horn that rose up,' as mentioned in Daniel 7:3-8, signifies the full perversion of the Word by the application of its literal sense to the confirmation of the love of dominion. It is called 'little,' because such perverted application is not sensibly apparent to the understanding of a person, or to the sight of his spirit.

When spoken of the Lord, a 'horn' signifies omnipotence. It also stands for the power of truth from good.

(Referencias: Apocalypse Revealed 270)

1735. That 'blessed be God Most High' means the Lord's Internal Man is clear from what has been stated just above concerning the Internal Man. Jehovah was called 'God Most High' in the Ancient Church for the reason that 'height' represented and therefore meant what is internal, so that 'Most High' meant that which is inmost. This is why the worship of the Ancient Church was celebrated on high places, mountains, and hills. Also, that which is inmost in relation to the exterior and outermost is exactly the same as that which is the most high in relation to lower and lowest. The Most High, or Inmost, is the Celestial element of Love, or Love itself. Jehovah, or the Lord's Internal, was the Celestial element itself of Love, that is, it was Love itself, to which no other attributes are appropriate than those of pure Love and so of pure Mercy towards the whole human race, that Mercy being such that it wills to save all men, to make them eternally happy, and to impart to them all that is its Own - thus out of pure Mercy and by the mighty power of love to draw towards heaven, that is, towards Itself, all who are willing to follow. That Love itself is Jehovah. To Love alone, and to nothing else, is [the substantive verb] Am or Is truly applicable.

[2] From that Love the Being (Esse) of all life is derived, that is, Life itself is derived; for that Being is present within Love and is Love itself. And because Jehovah alone, since He alone is Love, is the Being (Esse) of life, or Life itself, every single thing has its being (esse) and its life from Him. Nor can anyone except Jehovah alone, that is, the Lord alone, be and live from himself. And because no one except the Lord alone can do so, men's seeming to themselves to live from themselves is an illusion of the senses. Angels perceive clearly that they do not live from themselves but from the Lord, since they live in the Being (Esse) of the Lord's life because they abide in His Love. Yet to them more than to all others there is granted, together with indescribable happiness, the appearance of living as if from themselves. This therefore is what is meant by living in the Lord, something that is not possible unless one lives in His Love, that is, in charity towards the neighbour.