GEN1182 Even when planning to do a substantial act of chesed, say little and do much. Rabbi Samson Raphael Hirsch points out that Rivkah did not immediately say that she would also draw water for the camels.   She waited until Eliezer finished drinking.   Had she mentioned all of her intentions immediately, she would have been a conceited gossip who likes to make a big talk about her good deeds.  This would have shown a lack of Avraham’s trait of saying little and doing much.   When three stranger s appeared to Avraham, he said to them that he would fetch a morsel of bread, but in practice he fetched meat and cakes for his guests (Genesis 18:5-7).   We should follow the examples of Avraham and Rivkah not to needlessly boast about our plans to do good deeds. (Rabbi Hirsch’s Commentary, on this verse).  PLYN 91