John Wesley on 1 Chronicles 13:2

David said - After this was proposed by the king and accepted by the people, this great assembly was dismissed, only some of them David reserved to go with him against Jerusalem, which accordingly he did, and succeeded in his enterprize. But before this resolution could be executed, the Philistines came and fought twice with David, as is related 2Sam 5:17,22, &c. and here chap.1Ch 14:8, &c. And after they were repulsed with great loss and shame, David sets upon the execution of what he had resolved, and in order to it calls another general assembly of the people. Of the Lord - If this translation of the ark be pleasing to God. Are left - After the great desolations and destructions which God for their sins had made among them.