Biblical or old fashioned female names?

Kehly
From the moment we found out our first was a girl, she was Ruth Kay and it fits her. She's such a Ruthie. 
We want a similar name for our second girl, and my husband loves Esther after his grandma. We are both only 75% in love with this name. She'd probably be Esther Grace. But, what do you call them for short!!??! 
Estie is like testie and Essie I'm not a huge fan of. Any other name suggestions along this line!?? It's our front runner right now and we are both unsure.
The second runner up is Helen but our last name starts with an H also... it wasn't this hard the first time 😩