We are told in Ephesians 5:25 that husbands are to love their wives “even as Christ also loved the church” and in Revelation 3:19 Christ after rebuking his churches says “As many as I love, I rebuke and chasten: be zealous therefore, and repent”. This shows us as Christian husbands that an indispensable part of us loving our wives as Christ loves his church is that we rebuke and discipline our wives.
A husband who will not rebuke or discipline his wife for sinful behavior is no better than a parent who will not rebuke and discipline their child for sinful behavior.
And no, a husband disciplining his wife is not him treating his wife as a child, it is him treating his wife as a woman and women are under the authority of men in God’s order. And no, God does not recognize the modern invention of the “adult” social class. So, the notion we hear so often in churches that “he is an “adult” and responsible for himself before God and she is an “adult” and responsible for herself before God” is completely unbiblical. The humanist invention of the “adult” social class is a perversion and attempt to give women the same rights, responsibilities and privileges as men, something God never did.
For more details on the how a husband can go about disciplining his wife in a way which follows Biblical principles for discipline see my article “7 Ways To Discipline Your Wife“.