They invented their own worship. They said, ‘We will have God, Jehovah, but we will also have idols we can see’, and they are condemned for that.
Many Christians want to invent their own worship, just like the world. They want visible things, things they can feel and sense. They say, ‘We will have the Lord; we will have Christ; we will have the doctrines of grace; we will have the word of God, but we will also have the rock, and the rap music, and everything else.’
Are Christian people lured him onto the Internet looking at pornography and disgusting things, and polluting their minds, and betraying their marriages – ‘Neither let us commit fornication’ – and if they only knew it, preparing their hearts for even bigger sins of fornication.
See Numbers, A Noordtzij, p. 25 for a consideration of the difference between the number who died in Numbers 25:9 and in 1 Corinthians 10:8.