Hitler held strong faith in all his convictions. He justified his fight for the German people and against Jews by using Godly and Biblical reasoning. Indeed, one of his most revealing statements makes this quite clear:
"Hence today I believe that I am acting in accordance with the will of the Almighty Creator: by defending myself against the Jew, I am fighting for the work of the Lord."
Although Hitler did not practice religion in a churchly sense, he certainly believed in the Bible's God. Raised as Catholic he went to a monastery school and, interestingly, walked everyday past a stone arch which was carved the monastery's coat of arms which included a swastika. As a young boy, Hitler's most ardent goal was to become a priest. Much of his philosophy came from the Bible, and more influentially, from the Christian Social movement. (The German Christian Social movement, remarkably, resembles the Christian Right movement in America today.)
Many have questioned Hitler's stand on Christianity. Although he fought against certain Catholic priests who opposed him for political reasons, his belief in God and country never left him. Many Christians throughout history have opposed Christian priests for various reasons; this does not necessarily make one against one's own Christian beliefs. Nor did the Vatican's Pope & bishops ever disown him; in fact they blessed him! As evidence to his claimed Christianity, he said:
"My feelings as a Christian points me to my Lord and Savior as a fighter. It points me to the man who once in loneliness, surrounded by a few followers, recognized these Jews for what they were and summoned men to fight against them and who, God's truth! was greatest not as a sufferer but as a fighter. In boundless love as a Christian and as a man I read through the passage which tells us how the Lord at last rose in His might and seized the scourge to drive out of the Temple the brood of vipers and adders.
How terrific was His fight for the world against the Jewish poison. To-day, after two thousand years, with deepest emotion I recognize more profoundly than ever before the fact that it was for this that He had to shed His blood upon the Cross. As a Christian I have no duty to allow myself to be cheated, but I have the duty to be a fighter for truth and justice... And if there is anything which could demonstrate that we are acting rightly it is the distress that daily grows. For as a Christian I have also a duty to my own people.
-Adolf Hitler, in a speech on 12 April 1922 (Norman H. Baynes, ed. The Speeches of Adolf Hitler, April 1922-August 1939, Vol. 1 of 2, pp. 19-20, Oxford University Press, 1942)
https://www.nobeliefs.com/hitler.htm