Not only are they growing bigger noticeably week to week, but their abilities are also growing week to week. Over the summer the baby has learned to walk, she babbles intelligibly, and her hair is growing in more and more. Three-year-old brother has developed some real ball skills that nearly match his love for all ball sports. And big 4-yr-old sister has really been developing her singing abilities. Each week she has shown her developing talents by singing Primary songs to me. (It helps that her mother sings with her every day.)
At first, we just sang 2-part songs with both parts in similar ranges. But, of course, I would give them each little solos, too. Then it became obvious that my second daughter had an unusually low range, deeper than my oldest son for a time. That gave us the option to branch out into 3-part treble songs. Then came that glorious day when Michael's voice dropped. We could do full out SATB+ arrangements. Dad even joined us when he and Michael could support each other singing the bass part together.
One of the lines compares the promise of a seed to the promise of a child.
Both miracles are worthy to admire.