Thou mayest not sacrifice the passover within any of thy gates, which the LORD thy God giveth thee: But at the place which the LORD thy God shall choose to place his name in, there thou shalt sacrifice the passover at even, at the going down of the sun, at the season that thou camest forth out of Egypt.
In this verse we read that God was very specific about the terms He was to be worshipped in. He did not merely want a sincere heart. He wanted a sincere heart that was approaching Him through His Word. They were not to worship God in the manner that pleased them, but in the manner that please Him. Satan invents many substitutes and it all enthrones him and our own will. We are free to do things as we desire, but God is not obligated to recognize our own means and traditions of worship.
Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.
The only way to salvation is through Jesus Christ. God has one chosen place where he will receive worship. That is not in a temple, not in a denomination, but it’s in Jesus Christ. God placed his name in the Lord Jesus Christ and won’t receive any worship outside of him.
He won’t receive worship through Mohammed, Buddha or any other man made religion. He receives worship in that one place, Jesus Christ.
If you want to worship God and be accepted into heaven then you must approach Him in the way that He has chosen. We need to submit our wills to His will and when we do that we find a great satisfying joy within our hearts. We need to approach God on His terms and His only provided place of worship is in Jesus Christ.