'Claiming' in the Bible

Not long ago Theudas rose up, claiming to be somebody, and a group of about 400 men rallied to him. He was killed, and all his partisans were dispersed and came to nothing.

A man named Simon had previously practiced sorcery in that city and astounded the Samaritan people, while claiming to be somebody great.

Claiming to be wise, they became fools

Let no one disqualify you, insisting on ascetic practices and the worship of angels, claiming access to a visionary realm and inflated without cause by his unspiritual mind.