There is a passage in Psalms 131 that says, "But I have calmed and quieted my soul, like a weaned child with its mother; like a weaned child is my soul within me."
KumaHubo 131 uDavide uthi: "Ngiduduzile ngawuthulisa umphefumulo wami; njengomntwana olunyuliweyo kunina, njengolumulekileyo unjalo umphefumulo wami phakathi kwami."