John 9:4

it behoveth me to be working the works of Him who sent me while it is day; night doth come, when no one is able to work: --

John 12:35

Jesus, therefore, said to them, 'Yet a little time is the light with you; walk while ye have the light, that darkness may not overtake you; and he who is walking in the darkness hath not known where he goeth;

Ecclesiastes 9:10

All that thy hand findeth to do, with thy power do, for there is no work, and device, and knowledge, and wisdom in Sheol whither thou art going.

John 4:34

Jesus saith to them, 'My food is, that I may do the will of Him who sent me, and may finish His work;

Galatians 6:10

therefore, then, as we have opportunity, may we work the good to all, and especially unto those of the household of the faith.

Isaiah 38:18-19

For Sheol doth not confess Thee, Death doth not praise Thee, Those going down to the pit hope not for Thy truth.

Luke 13:32-34

and he said to them, 'Having gone, say to this fox, Lo, I cast forth demons, and perfect cures to-day and to-morrow, and the third day I am being perfected;

John 5:19

Jesus therefore responded and said to them, 'Verily, verily, I say to you, The Son is not able to do anything of himself, if he may not see the Father doing anything; for whatever things He may do, these also the Son in like manner doth;

John 5:36

'But I have the testimony greater than John's, for the works that the Father gave me, that I might finish them, the works themselves that I do, they testify concerning me, that the Father hath sent me.

John 10:32

Jesus answered them, 'Many good works did I shew you from my Father; because of which work of them do ye stone me?'

John 10:37

if I do not the works of my Father, do not believe me;

John 11:9-10

Jesus answered, 'Are there not twelve hours in the day? if any one may walk in the day, he doth not stumble, because the light of this world he doth see;

John 17:4

I did glorify Thee on the earth, the work I did finish that Thou hast given me, that I may do it.

Acts 4:20

for we cannot but speak what we did see and hear.'

Ephesians 5:16

redeeming the time, because the days are evil;

Colossians 4:5

in wisdom walk ye toward those without, the time forestalling;

Treasury of Scripture Knowledge

Summary

I must work the works of him that sent me, while it is day: the night cometh, when no man can work.

Bible References

Must

John 4:34
Jesus saith to them, 'My food is, that I may do the will of Him who sent me, and may finish His work;
John 5:19
Jesus therefore responded and said to them, 'Verily, verily, I say to you, The Son is not able to do anything of himself, if he may not see the Father doing anything; for whatever things He may do, these also the Son in like manner doth;
John 10:32
Jesus answered them, 'Many good works did I shew you from my Father; because of which work of them do ye stone me?'
John 17:4
I did glorify Thee on the earth, the work I did finish that Thou hast given me, that I may do it.
Luke 13:32
and he said to them, 'Having gone, say to this fox, Lo, I cast forth demons, and perfect cures to-day and to-morrow, and the third day I am being perfected;
Acts 4:20
for we cannot but speak what we did see and hear.'

While

John 11:9
Jesus answered, 'Are there not twelve hours in the day? if any one may walk in the day, he doth not stumble, because the light of this world he doth see;
John 12:35
Jesus, therefore, said to them, 'Yet a little time is the light with you; walk while ye have the light, that darkness may not overtake you; and he who is walking in the darkness hath not known where he goeth;
Ecclesiastes 9:10
All that thy hand findeth to do, with thy power do, for there is no work, and device, and knowledge, and wisdom in Sheol whither thou art going.
Isaiah 38:18
For Sheol doth not confess Thee, Death doth not praise Thee, Those going down to the pit hope not for Thy truth.
Ephesians 5:16
redeeming the time, because the days are evil;
Colossians 4:5
in wisdom walk ye toward those without, the time forestalling;