God, as described in Emanuel Swedenborg's writings, is the Creator and Sustainer of the universe. He is both the God of heaven and the God of earth. Swedenborg explains that God is a person, and that He is Divine love and wisdom, the source from which all else springs. It is emphasized that there is only one God, as confirmed by various passages from the Bible. God is omnipresent, omniscient, and omnipotent, meaning He is present everywhere, knows all, and has all power. The angels in Swedenborg's writings speak of God as Divine love and wisdom, and they encourage thinking of God as the Lord the Savior, who is the God of heaven and earth. The idea of God as a spirit, like the ether or wind, is considered meaningless, but thinking of God as Man is seen as a correct notion, as God is described as Divine love and wisdom with all their attributes. The writings also stress the importance of understanding that there is one God, and that the Lord is that God.

Sources:

New Jersualem and its Heavenly Teachings 280[1]
The Lord  THERE is one God, who is both the Creator and the Sustainer of the universe, and who therefore is God of heaven and God of...

Divine Love and Wisdom 16[1]
It can be seen from this that God is a person, and that He is therefore a God having expression - not having expression from Himself, but in Himself....

Doctrine of the Lord 45[2]
1. That there is one God. This is confirmed by the following passages from the Word:  Jesus (said), “The first of all the commandments is: ‘Hear, O...

Divine Providence 157[8]
(e) This single, essential reality is omnipresent, omniscient, and omnipotent. All Christians know this on the basis of their theology and all...

True Christian Religion 159[7]
'It is useless,' we said then, 'to talk to you about the Son of God born in the world, but this at least we shall say. To prevent faith about God, in...

True Christian Religion 72[2]
At the sides of the group there stood a number of people of simple faith and upright heart, some with reddened eyes, some as if drugged, some as if...

Divine Love and Wisdom 284[1]
In Part One of this work our subject was God, and we said that He is Divine love and wisdom, that He is life, and that He is the substance and form...

True Christian Religion 620[7]
Then they asked the angels to tell them more, and this time about God, the immortality of the soul, regeneration and baptism.  'We shall not say...

Doctrine of the Lord 45[1]
There Is One God, and the Lord Is That God  From the abundance of passages presented from the Word in the preceding section, it can be seen that the...

True Christian Religion 159[3]
We turned our eyes and ears towards the left, where the clergy were with the learned ones in front and the unlearned behind, and heard them arguing...

True Christian Religion 110[7]
After this I asked whether, like the rest of his companions, he admitted that God is one. He replied that he did. Then I said: 'I am afraid that in...