(Exo. 30:9) “Ye shall offer no strange incense thereon, nor burnt sacrifice, nor meat offering: neither shall ye pour drink offering thereon.”
The Lord continues to talk to Moses about the consecration of the priest’s and the altar of worship and he tells him “ye shall offer no strange incense thereon”; meaning that God didn’t want any offerings offered unto him that he didn’t recognize as holy. We know that offering strange incense or strange fire to God caused two of Aaron sons Nadab and Abihu to be killed at the altar by God (Lev 10:1-2). Therefore, when we attempt to go in the presence of God we too must pay attention to the offerings we attempt to offer to God. Thus, we shouldn’t try to offer God praise when there is sin in our heart, because (St. John 9:31 KJV) “Now we know that God heareth not sinners: but if any man be a worshipper of God, and doeth his will, him he heareth.” If we would be honest with ourselves we know that we go to God sometimes attempting to offer praise-prayer-or worship and our hearts are not right with him. We must understand that if our hearts are not right with God then our offerings become strange incense to God and viewed by God as unacceptable. We must understand that we can’t offer God any kind offering, on our terms, and in our ways and expect it to be received by God because it won’t be. To go before God with a heart of bitterness-un-forgiveness-hatred…etc, is a waste of time unless you are going to repent. Thus, the believer in Christ Jesus must be in a right standing with God before they can go to the altar of worship.
God Bless You.