'True God' in the Bible

The God of Abraham [your father] and the God of Nahor [my father], and the god [the image of worship] of their father [Terah, an idolater], judge between us.” But Jacob swore [only] by [the one true God] the Fear of his father Isaac.

Nor shall you offer as the food of your God any such [animals obtained] from a foreigner, because their corruption and blemish makes them unfit; there is a defect in them, they shall not be accepted for you.’”

Now for a long time Israel was without the true God and without a teaching priest, and without [God’s] law.

In the generations to come Jacob will take root;Israel will blossom and sprout,And they will fill the surface of the world with fruit.

“You were wearied by the length of your road,Yet you did not say, ‘It is no use.’You found renewed strength,Therefore you did not grow weak.

But the Lord is the true God and the God who is Truth;He is the living God and the everlasting King.The earth quakes and shudders at His wrath,And the nations are not able to endure His indignation.

The Portion of Jacob [the true God on whom Israel has a claim] is not like these;For He is the Designer and Maker of all things,And Israel is the tribe of His inheritance [and He will not fail them]—The Lord of hosts is His name.

The Portion of Jacob [the true God of Israel] is not like these [handmade gods];For He is the Maker of all and the One who formed and fashioned all things,And Israel is the tribe of His inheritance—The Lord of hosts is His name.

But at that time, when you did not know [the true] God and were unacquainted with Him, you [Gentiles] were slaves to those [pagan] things which by [their very] nature were not and could not be gods at all.

not [to be used] in lustful passion, like the Gentiles who do not know God and are ignorant of His will;

And we [have seen and] know [by personal experience] that the Son of God has [actually] come [to this world], and has given us understanding and insight so that we may [progressively and personally] know Him who is true; and we are in Him who is true—in His Son Jesus Christ. This is the true God and eternal life.