The kind of domestic environment children are born into is bound to influence them for the rest of their lives. Children "read" the reality of their parents' lives. 

Commenting on the kind of setting Timothy was born into, Paul says: 

"... from childhood you have known the Holy Scriptures, which are able to make you wise for salvation through faith which is in Christ Jesus," 2 Timothy 3'15.

"... I call to remembrance the genuine faith that is in you, which dwelt first in your grandmother Lois and your mother Eunice and I am persuaded is in you also," 2 Timothy 1'5.

In Timothy's household, the Scriptures were considered holy, believed and being expressed in every day life.

Although his father was a Greek unbeliever, the expression of "genuine faith" by his mother and grandmother affected his life. 

Timothy became wise regarding God's salvation. He grew to become a sincere and willing Disciple (Acts 16'1).

Children today can experience the spiritual unity and godly conduct of Parents, hearing the word of Christ and being among a Body of Believers - and being free to ask questions.

From infancy to adulthood, the children of believing couples today could experience an even greater faith environment.