וַיַּ֤עַל דָּוִד֙ כִּדְבַר־גָּ֔ד כַּאֲשֶׁ֖ר צִוָּ֥ה יְהוָֽה׃
And David went up according to the saying of Gad, as the LORD commanded.
Read Kabbalistic (mystical) interpretations of II Samuel 24:19: Zohar and classical Jewish mystical sources, free online.