What does Genesis 4:22 mean?
The previous two verses told of the life and work of two of Lamech's sons. This verse lists two others, both born of Lamech's wife Zillah. Tubal-cain worked with the metals bronze and iron to forge instruments, likely tools and possibly weapons. His sister's name was Naamah. The picture that emerges from this description of Lamech, his wives, and his talented children is one of a thriving family and community. Lamech's extended family had access to resources and possessed wealth enough for innovation and investment of time and energy into music.Right from the beginning, mankind is shown to be capable of creativity, innovation, industry, and productivity. As creatures made in the image of God (Genesis 1:27), humanity is uniquely able to create and discover.
But as the following verses will make clear, Lamech has some things in common with his murdering ancestor Cain. The society which Cain produced will soon overtake the earth, spreading evil, until God intervenes with the great flood.