John 12:36

While ye have light, believe in the light
Receive the Messiah, and credit the Gospel revelation; this is an explanation of the exhortation in the preceding verse:

that ye may be the children of the light;
that is, that they might appear to be such who are enlightened persons; and such are truly so, who are made light in the Lord, or who are enlightened by the Spirit of God to see their own sinfulness, impotency, and unrighteousness, and their need of Christ, and his righteousness and strength, and of salvation by him; and who are made meet, by the grace of God, to be partakers of the inheritance of the saints in light; and which is made manifest by believing in Christ, and walking on in him, as they have received him, and by walking honestly, as in the daytime, and circumspectly, not as fools, but as wise, for such walk as children of the light.

These things spake Jesus, and departed;
from those Jews, as being unworthy of any further conversation with him; and from Jerusalem, very likely to Bethany, whither he frequently retired, especially at night, during the few days before the passover:

and did hide himself from them:
for his safety, for he knew that they were irritated by what he said, and would seek to lay hold upon him, and deliver him to the sanhedrim; and whereas his hour was not yet fully come, there were a few more sands in the glass to run, he provided for his security, by absconding from them; and this was an emblem of his wholly removing from them, and leaving them, and their house, desolate; and it is very likely that from this time forward they saw him no more as ministering the word unto them; and also of his taking his Gospel from them in a little time, and of his hiding the things of it from them, which respected himself, and salvation by him.