the two entries into Jerusalem
Most "Harmonies" assume that because each Gospel, records an entry of the Lord into Jerusalem the four accounts must be identical because they are similar: and therefore conclude that because they differ in certain particulars there are "discrepancies".
Whereas if we treat them in their chronological sequences, and have regard to the antecedent and consequent circumstances, the supposed discrepancies will disappear, and the similar, but diverse, expressions will be seen to be necessary to the different events.
In this present case, one entry (Matt. 21.1-9) takes place before the other, which is recorded in Mark 11.1-10, Luke 19.30-34, and John 12.12-15.
- from Appendix 153, page 177, The Companion Bible