'True God' in the Bible

Understand, therefore, that the LORD thy God, he is God: and that a true God, which keepeth covenant and mercy unto them that love him and keep his commandments, even throughout a thousand generations;

There will come many days in Israel, in which there shall be no true God - nor priest that teacheth, nor any law.

Let men draw nigh, let them come hither, and ask counsel one at another, and show forth: "What is he, that told this before?" Or, "Who spake of it, ever since the beginning?" Have not I, the LORD, done it: without whom there is none other God? The true God and Saviour, and there is else none but I.

Whoso rejoiceth upon earth, shall rejoice in the true God: And whoso sweareth upon earth, shall swear in the true God. For the old enmity shall be forgotten, and taken away out of my sight.

But the LORD is a true God, a living God, and an everlasting king. If he be wroth, the earth shaketh: all the Gentiles may not abide his indignation.

for they themselves show of you what manner of entering in we had unto you, and how ye turned to God from images for to serve the living and true God,