His wealth: He was very rich, v. 2. He was very heavy, so the Hebrew word signifies; for riches are a burden, and those that will be rich do but load themselves with thick clay, Hab. ii. 6. There is a burden of care in getting them, fear in keeping them, temptation in using them, guilt in abusing them, sorrow in losing them, and a burden of account, at last, to be given up concerning them. Great possessions do but make men heavy and unwieldy.

Matthew Henry (1662-1714) English writer, religious philosopher

Exposition of the Old and New Testament, Genesis 13:2 (1706)
    (Source)

On Genesis 13:2: "And Abram was very rich in cattle, in silver, and in gold." [KJV]. Referencing Habakkuk 2:6: "Woe to him that increaseth that which is not his! how long? / and to him that ladeth himself with thick clay!" [KJV]

Often just shortened to:

There is a burden of care in getting riches, fear in keeping them, temptation in using them, sorrow in losing them, and a burden of account, at last, to be given up concerning them.