Charles Ellicott Commentary Matthew 19:27

"Then answered Peter and said unto him, Lo, we have left all, and followed thee; what then shall we have?" — Matthew 19:27 (ASV)

Behold, we have forsaken — The question betrayed the thoughts that had been working in the minds of the disciples, and St. Peter, as was his custom, served as their spokesman. They had complied with their Master’s commands. What were they to have as the special reward to which they were thus entitled?

It is obvious that in asking for that reward, they showed that they had complied only with the letter of the command, not with its spirit. They had not truly denied themselves, even though they had forsaken their earthly calling and the comforts of their home. They were dwelling on what they had done, as if it in itself gave them a right to compensation.