Jeremiah 1:5
Before I formed thee in the belly I knew thee; and before thou camest forth out of the womb I sanctified thee, and I ordained thee a prophet unto the nations. Before I formed thee in the belly I knew thee; and before thou camest forth out of the womb I sanctified thee, and I ordained thee a prophet unto the nations.
Before birth God set Jeremiah apart and appointed him to be a prophet to the nations. He was ordained from birth for prophetic service, though he did not yet realize it during his years of preparation.
The verse teaches that God knows a person before forming him in the belly, and before he comes forth out of the womb sanctifies, dedicates and ordains him to a definite lifework. The pattern is dedication to God before birth, followed after birth by being chosen to serve Him with singleness of purpose and by training from childhood for that calling. Such a foreordained work becomes the person's inheritance from the Lord and his lifeblood and the very work for which he was born, which cannot be separated from him. He cannot disconnect himself from it, and he cannot be at rest in spirit apart from it, especially when important matters need adjustment.
One so called is to stand ready to serve where necessity requires and to remain connected with the general work in which he is intensely interested. When important matters need adjustment increased responsibility rests upon him to discharge faithfully, with duties as important and sacred as those of any man who deals with the mental and spiritual interests of his fellow men. If he trusts wholly in God, the Lord works with him and through him, giving him judgment to do the Master's service aright.
Applied to W. C. White, this means he was dedicated to God before his birth and chosen of God after his birth to serve Him with singleness of purpose, and from his childhood was trained for the Lord's work. His ordained work includes connection with his mother's work in preparing her writings for publication in book form, bearing other responsibilities in this country, seeing the needs of God's cause and presenting them to arouse proper attention, and giving the people essential light in regard to plans and methods. For him this work requires giving his whole time to preparing those writings with as little delay as possible, remaining connected with that work and with the general work, and he cannot be at rest in spirit when important matters need adjustment.