"Apparition of the Angel to Hagar and Ishmael" by Giovanni Domenico Tiepolo,

apparition ：顯現；啟示：一般指聖母和聖人們顯身給世人：如 1858 年聖母在法國露德（ Lourdes ）的顯現。一般須經教會證實方可允許公開敬禮，以免被誤導。與神的顯現 epiphany / theophany 和基督的顯現 Christophany 相對照。

The Nelson-Atkins Museum of Art

Tonight's Art Moment is "Apparition of the Angel to Hagar and Ishmael" by Giovanni Domenico Tiepolo, ca. 1751. Hagar, depicted here between her son Ishmael and an angel, was the servant of Abraham and his wife Sarah, who was infertile. To preserve the family line, Sarah agreed that Hagar should bear Abraham's child. Hagar bore Ishmael, and soon thereafter, Sarah was also able to conceive and give birth to a son, whom she and Abraham called Isaac. Fearing for her son's rights,

 Sarah forced Abraham to banish Hagar and Ishmael to the wilderness. The two outcasts are pictured here receiving assistance from an angel. Giovanni Domenico was the son of Giovanni Battista Tiepolo, whose Allegorical Scene is exhibited in Gallery P20. Giovanni Domenico spent much of his career assisting his father, but here his originality is shown in the use of strong contrasting diagonals to enhance the emotional effect of the subject. Gallery P22.