Corresponding Greek / Hebrew Entries: • H1494 גָּזַז (gazaz): To shear, cut off. This Hebrew term is used in the Old Testament in similar contexts, such as the shearing of sheep or the cutting of hair, and is conceptually related to the Greek κείρω in terms of its function and symbolic meaning.

Usage: The verb κείρω is used in the context of cutting or shearing, particularly in reference to hair. It appears in the New Testament in contexts that involve the act of cutting hair as part of a vow or ritual.

Context: The Greek verb κείρω (keirō) is primarily used in the New Testament to describe the act of cutting or shearing hair. This term is notably found in the context of the Nazirite vow, a special vow of dedication to God described in the Old Testament, where individuals would abstain from cutting their hair for a period of time as a sign of their consecration (Numbers 6:5). In the New Testament, κείρω is used in Acts 18:18, where it is recorded that the Apostle Paul "had his hair cut off at Cenchrea because of a vow he had taken." This indicates that Paul was observing a vow similar to the Nazirite vow, which involved the ritual cutting of hair at the conclusion of the vow period.

The act of cutting hair in biblical times could symbolize various things, including the end of a vow, mourning, or purification. In the case of Paul, the cutting of hair was a significant act that marked the fulfillment of a vow he had made, demonstrating his dedication and obedience to God.

The cultural and religious significance of hair in biblical times is profound, as it often represented strength, identity, and spiritual commitment. The use of κείρω in the New Testament highlights the continuity of certain Jewish customs and practices within the early Christian community, reflecting the deep roots of Christian faith in Jewish tradition.