John 13:7 Commentary - Garner-Howes Baptist Commentary
1) "Jesus answered and said unto him," (apekrithe lesous kai eipen auto) "Jesus responded and said directly to him," who had drawn back in an honorable, respectful manner, so that the Lord recognized the good motive of his heart and replied in tender tone to him.
2) "What I do thou knowest not now;” (ho ego poio su ouk oidas arti) "What I am doing you do not realize yet;" at this hour, or present time, Joh 13:12; Joh 13:36. But the meaning of "arti," the "this moment now" implies that he is to know shortly, as the Lord gave instruction to His disciples regarding the principle of foot-washing for the future, Joh 13:12-15.
3) "But thou shalt know hereafter." (gnose de meta tauta) "However, you will know these things hereafter," or later you will understand, or know full well, emphatically, unmistakably. The best trait of a servant is to trust in the wisdom of his Lord or master, with an absolute trust, Pro 3:4-5.
Consult other comments:
John 13:7 - Abbott's Illustrated New Testament
John 13:7 - The Greek Testament
John 13:7 - Albert Barnes' Notes on the Bible
John 13:7 - Joseph Benson’s Commentary on the Old and New Testaments
John 13:7 - Calvin's Complete Commentary
John 13:7 - The Cambridge Bible for Schools and Colleges
John 13:7 - Adam Clarke's Commentary and Critical Notes on the Bible
John 13:7 - Commentary on the Holy Bible by Thomas Coke
John 13:7 - Companion Bible Notes, Appendices and Graphics
John 13:7 - Ellicott's Commentary for English Readers (Old and New Testaments)
John 13:7 - The Expositor’s Greek Testament by Robertson
John 13:7 - Garner-Howes Baptist Commentary
John 13:7 - John Gill's Exposition of the Entire Bible
John 13:7 - Gnomon of the New Testament
John 13:7 - Henry Alford's Greek Testament
John 13:7 - Jamieson, Fausset and Brown's Commentary Critical and Explanatory on the Whole Bible
John 13:7 - Church Pulpit Commentary
John 13:7 - English Annotations on the Holy Bible by Matthew Poole
John 13:7 - Old and New Testaments Restoration Commentary
John 13:7 - Robertson's Word Pictures in the New Testament
John 13:7 - A Popular Commentary on the New Testament
John 13:7 - John Trapp's Complete Commentary (Old and New Testaments)
John 13:7 - The Treasury of Scripture Knowledge
John 13:7 - Vincent's Word Studies in the New Testament
John 13:7 - Whedon's Commentary on the Old and New Testaments
Garner-Howes Baptist Commentary

The Garner-Howes Baptist Commentary of the Whole Bible was originally published as a 23-volume set by Albert Garner (principal author) along with J. C. Howes, G.F. Crumley, and Eugene Garner in 1985. The Blessed Hope Foundation has released this digital edition into the public domain.