'Proper' in the Bible
Therefore let us approach the throne of grace with boldness, so that we may receive mercy and find grace to help us at the proper time.
By faith even Sarah herself received ability to conceive, even beyond the proper time of life, since she considered Him faithful who had promised.
By faith Moses, when he was born, was hid three months of his parents, because they saw he was a proper child; and they were not afraid of the king's commandment.
For our earthly fathers disciplined us for only a short time as seemed best to them; but He disciplines us for our good, so that we may share His holiness.