For day and night your hand was heavy on me; my strength was sapped as in the heat of summer.
NIV
For day and night Your hand [of displeasure] was heavy upon me; my moisture was turned into the drought of summer. Selah [pause, and calmly think of that]!
AMP
For day and night thy hand was heavy upon me: my moisture is turned into the drought of summer. Selah.
KJV