53:33 Trial is part of the education given in the school of Christ, to purify God's children from the dross of earthliness. It is because God is leading His children that trying experiences come to them. Trials and obstacles are His chosen methods of discipline, and His appointed conditions of success. He who reads the hearts of men knows their weaknesses better than they themselves can know them. He sees that some have qualifications which, if rightly directed, could be used in the advancement of His work. In His providence He brings these souls into different positions and varied circumstances, that they may discover the defects that are concealed form their own knowledge. He gives them opportunity to overcome these defects and to fit themselves for service. Often He permits the fires of affliction to burn, that they may be purified.