confess, confessed, confesses, confession, confessing, profess

Definition:

To confess means to admit or assert that something is true. A "confession" is a statement or admission that something is true.

The term "confess" can refer to boldly stating the truth about God. It can also refer to admitting that we have sinned.
The Bible says that if people confess their sins to God, he will forgive them.
James the apostle wrote in his letter that when believers confess their sins to each other, this brings spiritual healing.
The apostle Paul wrote to the Philippians that someday everyone will confess or declare that Jesus is Lord.
Paul also said that if people confess that Jesus is Lord and believe that God raised him from the dead, they will be saved.

Depending on the context, ways to translate "confess" could include, "admit" or "testify" or "declare" or "acknowledge" or "affirm."
Different ways to translate "confession" could be, "declaration" or "testimony" or "statement about what we believe" or "admitting sin."