'Right Hand' in the Bible

but on the contrary seeing that I was intrusted with the gospel of the uncircumcision, as Peter was of the circumcision,??8 for he that operated in Peter for the apostleship of the circumcision, operated also in me for the gentiles,??9 and knowing the grace given me, James and Cephas and John, who were manifest pillars, gave to me and Barnabas the right hand of fellowship that we should go to the gentiles and they to the circumcision;

And when James, Cephas, and John, who seemed to be pillars, perceived the grace that was given unto me, they gave to me and Barnabas the right hands of fellowship; that we should go unto the heathen, and they unto the circumcision.