A great way to ignite your passion for God is to make sure your heart is turned to Him. We are not perfect people and we will fail often. God still loves us. What God desires is for us to desire Him. That our hearts would long for Him. You can see this in the Bible passage from the book of 1 Kings, chapter 11, verses 1-11.
"Now King Solomon loved many foreign women, along with the daughter of Pharaoh: Moabite, Ammonite, Edomite, Sidonian, and Hittite women, 2 from the nations concerning which the Lord had said to the people of Israel, “You shall not enter into marriage with them, neither shall they with you, for surely they will turn away your heart after their gods.” Solomon clung to these in love. 3 He had 700 wives, who were princesses, and 300 concubines. And his wives turned away his heart. 4 For when Solomon was old his wives turned away his heart after other gods, and his heart was not wholly true to the Lord his God, as was the heart of David his father. 5 For Solomon went after Ashtoreth the goddess of the Sidonians, and after Milcom the abomination of the Ammonites. 6 So Solomon did what was evil in the sight of the Lord and did not wholly follow the Lord, as David his father had done. 7 Then Solomon built a high place for Chemosh the abomination of Moab, and for Molech the abomination of the Ammonites, on the mountain east of Jerusalem. 8 And so he did for all his foreign wives, who made offerings and sacrificed to their gods.
9 And the Lord was angry with Solomon, because his heart had turned away from the Lord, the God of Israel, who had appeared to him twice 10 and had commanded him concerning this thing, that he should not go after other gods. But he did not keep what the Lord commanded. 11 Therefore the Lord said to Solomon, “Since this has been your practice and you have not kept my covenant and my statutes that I have commanded you, I will surely tear the kingdom from you and will give it to your servant.
You can see that God gave Solomon warnings on what to do (and not do) otherwise it was going to turn his heart away from God. He was even compared to his father David, who had a heart turned to God even though he made many mistakes as a person. God saw David's heart through all of it. Because of Solomon's heart towards God, he was punished by God. This is a man who did many good things in the name of The Lord. But because his heart wasn't right towards God, there was punishment.