Albert Barnes on Acts 15:19

My sentence. Gr., I judge, (κρινω) that is, I give my opinion. It is the usual language in which a judge delivers his opinion; but it does not imply here that James assumed authority to settle the case, but merely that he gave his opinion or counsel.

That we trouble not them. That we do not molest, disturb, or oppress them, by imposing on them unnecessary and burdensome rites and ceremonies.

(*) "my sentence is" "judgment" (b) "turned to God" 1Thes 1:9