Long time therefore abode they speaking boldly in the Lord, which gave testimony unto the word of his grace, and granted signs and wonders to be done by their hands.
Long time therefore abode they - because, in spite of the opposition, their success was so great;
Speaking boldly in the Lord, х epi (G1909) too (G3588) Kurioo (G2962): cf. Luke 4:4, ep' (G1909) artoo (G740)] - meaning, 'in dependence' or 'in reliance on the Lord;' that is, the Lord Jesus,
Which gave testimony unto the word of his grace - a notable definition this of the Gospel (as Bengel remarks), whose whole burden is GRACE,
And granted ('granting') signs and wonders - that is, gave miraculous attestation to it
To be done by their hands. [The kai (G2532) before didonti (G1325) in the Received Text, is evidently not genuine.]