“And they continued stedfastly in the apostles' doctrine and fellowship, and in breaking of bread, and in prayers.”
King James Version (KJV)
2:42 And they continued steadfast - So their daily Church communion consisted in these four particulars: Hearing the word; Having all things common; Receiving the Lord's Supper; Prayer. Ye diff'rent sects, who all declare, Lo here is Christ, and Christ is there; Your stronger proofs divinely give, And show me where the Christians live!
Ac 2:42 They continued stedfastly in the apostles' doctrine. In the things taught by the apostles. And fellowship. Contribution to the common fund and its distribution. In the breaking of bread. The Lord's supper. From this time it is observed as an ordinance of the church. In prayers. I think the prayers of the regular worship are meant. These four items are all features of the public church life.