Acts 18:18

And Paul having remained yet many days took leave of the brothers, and sailed to Syria; and Priscilla was with him, and Aquila, having shaved his head at Cenchrea; for he had a vow.

Acts 21:23-24

Do this, therefore, which we tell you. We have four men having a vow upon them;

Philippians 3:8-9

But for the same reason also I consider all things to be a loss on account of the excellency of the knowledge of Christ Jesus my Lord, for whose sake I have suffered the loss of all things, and consider them worthless that I may gain Christ

Treasury of Scripture Knowledge

Summary

And if any man die very suddenly by him, and he hath defiled the head of his consecration; then he shall shave his head in the day of his cleansing, on the seventh day shall he shave it.

Bible References

Shave

Acts 18:18
And Paul having remained yet many days took leave of the brothers, and sailed to Syria; and Priscilla was with him, and Aquila, having shaved his head at Cenchrea; for he had a vow.
Acts 21:23
Do this, therefore, which we tell you. We have four men having a vow upon them;
Philippians 3:8
But for the same reason also I consider all things to be a loss on account of the excellency of the knowledge of Christ Jesus my Lord, for whose sake I have suffered the loss of all things, and consider them worthless that I may gain Christ