How does the miracle performed by Peter and John compare to Christ's miracles?
The miracle performed by Peter and John was nothing different from what Christ had been doing for three years. They were still under the legal system of Judaism, still an extension of Christ's earthly ministry, and had no concept of the church age, so their miracle matched Christ's earthly miracles.
Les explains that Peter and John went up to the temple to pray because they had no concept of what we call the church age. They were still under the legal system of Judaism and were still an extension of Christ's earthly ministry. When we get back to Acts and see the miracle they perform, it is nothing different than what Christ had been doing for three years. This places their miracle in line with Christ's earthly ministry rather than as something new for the church age. The mystery of the fellowship of the secret had been hid in God from the beginning of the age and had not yet been revealed.