a little child. In his father's eyes a "wise man" (1Ki_2:6, 1Ki_2:9).
I know not = I shall not know. Some codices, with Septuagint, Syriac, and Vulgate, read "and know not", indicating the Figure of speech Polysyndeton here, and in the following verses. App-6.
to go out or come in. Compare Num_27:17. Figure of speech Synecdoche (of Part). App-6. Put for whole manner of life.