Meaning
The descendants of a man, however remote, are called his children; as, "the children of Edom," "the children of Moab," "the children of Israel."
In the earliest times mothers did not wean their children till they were from thirty months to three years old; and the day on which they were weaned was kept as a festival day (Gen 21:8; Ex 2:7, 9; 1Sam 1:22-24; Matt 21:16). At the age of five, children began to learn the arts and duties of life under the care of their fathers (Deut 6:20-25; 11:19).
To have a numerous family was regarded as a mark of divine favour (Gen 11:30; 30:1; 1Sam 2:5; 2Sam 6:23; Ps 127:3; 128:3).
Figuratively the name is used for those who are ignorant or narrow-minded (Matt 11:16; Luke 7:32; 1Cor 13:11). "When I was a child, I spake as a child." "Brethren, be not children in understanding" (1Cor 14:20). "That we henceforth be no more children, tossed to and fro" (Eph 4:14).
Children are also spoken of as representing simplicity and humility (Matt 19:13-15; Mark 1:10-16; Luke 1:18-17). Believers are "children of light" (Luke 16:8; 1Thess 5:5) and "children of obedience" (1Pet 1:14).