When the Lord came to earth, He had a veil of forgetfulness placed over His mind, as we do, but He, like us, progressed from grace to grace (see 1
From His early childhood until He began His public ministry, the only story we have of Him is in a teaching role in the temple at age 12, demonstrating an unusual command of wisdom and knowledge: "After three days [Joseph and Mary] found him in the temple, sitting in the midst of the doctors [or teachers], both hearing them, and asking them questions" (Him questions.
His growing in knowledge before He began His ministry exemplifies the counsel He gave to Hyrum Smith in 1829: "Seek not to declare my word, but first seek to obtain my word, and then shall your tongue be loosed; then, if you desire, you shall have my Spirit and my word, yea, the power of God unto the convincing of men" (D&C 11:21).
We too can search the scriptures for instruction and inspiration as we begin our ministries, whether that ministry be a new calling, a new responsibility (such as parenthood), or simply a family home evening lesson.