John 12:36

³⁴ The people answered him, We have heard out of the law that Christ abideth for ever: and how sayest thou, The Son of man must be lifted up? who is this Son of man?

³⁵ Then Jesus said unto them, Yet a little while is the light with you. Walk while ye have the light, lest darkness come upon you: for he that walketh in darkness knoweth not whither he goeth.

While ye have light, believe in the light, that ye may be the children of light. These things spake Jesus, and departed, and did hide himself from them.

³⁷ But though he had done so many miracles before them, yet they believed not on him:

³⁸ That the saying of Esaias the prophet might be fulfilled, which he spake, Lord, who hath believed our report? and to whom hath the arm of the Lord been revealed?

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB: While you have the Light, believe in the Light, so that you may become sons of light.” After Jesus had spoken these things, He went away and was hidden from them.
KJV: While ye have light, believe in the light, that ye may be the children of light. These things spake Jesus, and departed, and did hide himself from them.
WEB: While you have the light, believe in the light, that you may become children of light.” Jesus said these things, and he departed and hid himself from them.
ASV: While ye have the light, believe on the light, that ye may become sons of light. These things spake Jesus, and he departed and hid himself from them.
DARBY: While ye have the light, believe in the light, that ye may become sons of light. Jesus said these things, and going away hid himself from them.
BLB: While you⁺ have the Light, believe in the Light, so that you⁺ may become sons of light.” Jesus spoke these things, and having gone away, He was hidden from them.

ÅB: Tro på lyset den stund dere har lyset, for at dere kan bli lysets barn! Dette talte Jesus, og han gikk bort og skjulte seg for dem.
OTB: Tro på lyset mens dere har lyset, så dere kan bli lysets barn." Da han hadde sagt dette, forlot Jesus dem og skjulte seg for dem.
B1930: Tro på lyset den stund I har lyset, forat I kan bli lysets barn! Dette talte Jesus, og han gikk bort og skjulte sig for dem.

Study notes (Tyndale)

Original text and word study

Cross references

Ephesians 5:8
For ye were sometimes darkness, but now are ye light in the Lord: walk as children of light:
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1 Thessalonians 5:5
Ye are all the children of light, and the children of the day: we are not of the night, nor of darkness.
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John 8:59
Then took they up stones to cast at him: but Jesus hid himself, and went out of the temple, going through the midst of them, and so passed by.
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Luke 16:8
And the lord commended the unjust steward, because he had done wisely: for the children of this world are in their generation wiser than the children of light.
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John 1:7
The same came for a witness, to bear witness of the Light, that all men through him might believe.
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Isaiah 60:1
Arise, shine; for thy light is come, and the glory of the LORD is risen upon thee.
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Acts 13:47–48
For so hath the Lord commanded us, saying, I have set thee to be a light of the Gentiles, that thou shouldest be for salvation unto the ends of the earth.
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1 John 2:9–11
He that saith he is in the light, and hateth his brother, is in darkness even until now.
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