Bring (someone) in from the cold phrase
To let someone take part in a group from which they were once omitted; to make somebody feel welcome and part of a particular social environment.
John once committed a crime, but he served his sentence. Would you mind bringing him in from the cold?
His group left him out for his irresponsibility. However, when realizing that he has become more responsible, they brought him in from the cold.
The verb "bring" must be conjugated according to its tense.
The origin of this phrase is not clear.