"You have a knowledge of the truth; you are not ignorant of the claims of Scripture; you know your Master's will, for He has plainly revealed it. But your heart is not inclined to follow the light which shines upon your pathway. You have a large measure of self-conceit. Your love for self is greater than your love for the cause of present truth. Your self-confidence and your self-sufficiency will certainly prove your ruin unless you can see your weakness and errors, and reform. You are arbitrary. You have a set will of your own to maintain, and although the opinions of others may be correct, and your judgment wrong, yet you are not the man to yield. You hold firmly to your advanced opinion, irrespective of the judgment of others. I wish you could see the danger of continuing the course you have been pursuing. If your eyes could be enlightened by the Spirit of God, you would see these things clearly. 3T 244.1"
"And that servant, which knew his lord’s will, and prepared not himself, neither did according to his will, shall be beaten with many stripes."
Both passages address the idea of knowing God's will but failing to act accordingly, resulting in negative consequences. The EGW passage expands on the concept of self-conceit hindering obedience.
"You feel that your wife should not interfere with your plans and arrangements, and you too frequently set your will and plans of operation in opposition to hers. You act as though her identity should be merged in yours. You are not satisfied to have her act as though she had an individuality, an identify of her own. God holds her accountable for her individuality. You cannot save her, and she cannot save you. She has a conscience of her own by which she must be guided. You are too willing to be conscience for her, and sometimes for your children. God has higher claims upon your wife than you can have. She must form a character for herself, and she is accountable to God for the character she develops. 3T 244.3"
"Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh."
While not a direct quote, the EGW passage discusses the husband's attempt to control his wife's individuality and conscience, contrasting with the principle of individual accountability to God, which is a theme related to the concept of 'one flesh' but also distinct from it.