"creating, regenerating power of the Holy Spirit. Realizing the aid of this mighty agency, cannot parents work for the conversion of their children with more zeal and love than ever before?— Extract from an article in The Review and Herald, March 14, 1893 . CE 231.1"
"Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration, and renewing of the Holy Ghost;"
Both passages refer to the regenerating power of the Holy Spirit. The EGW passage applies this concept to the context of parents working for the conversion of their children, while Titus 3:5 speaks more generally about salvation and spiritual renewal through the Holy Spirit. There is a clear thematic connection.