Far too many people have forsaken the simplicity which is in Christ and have instead pursued the complexity and labour of religion (2 Corinthians 11:3).
Paul was one of the most religious people ever to live. In spite of his religious efforts, he was condemned to hell until he trusted Christ as Saviour.
People unite over various causes. Some of those causes are righteous, while others are not. Unity based upon a righteous cause pleases the Lord and leads to righteous acts. Unity based upon ungodly or carnal causes grieves the Lord and leads to the wickedness we find so prevalent in the world today. After the flood, the Lord commanded Noah and his family to “replenish the earth” (Genesis 9:1). They could not replenish the earth if they remained together so the Lord wanted Noah’s family to spread out across the earth. Yet, the people immediately began settling together and “Noah began to be an husbandman” (Genesis 9:20). This may seem insignificant, but it was only the precursor to the unified desire in Genesis 11:4 to build “a tower, whose top may reach unto heaven.” Noah’s disobedience led to further and greater disobedience and unity in a common wicked cause.
