Sirach 3:8-18

8 Honour thy father and mother both in word and deed, that a blessing may come upon thee from them.
9 For the blessing of the father establisheth the houses of children; but the curse of the mother rooteth out foundations.
10 Glory not in the dishonour of thy father; for thy father's dishonour is no glory unto thee.
11 For the glory of a man is from the honour of his father; and a mother in dishonour is a reproach to the children.
12 My son, help thy father in his age, and grieve him not as long as he liveth.
13 And if his understanding fail, have patience with him; and despise him not when thou art in thy full strength.
14 For the relieving of thy father shall not be forgotten: and instead of sins it shall be added to build thee up.
15 In the day of thine affliction it shall be remembered; thy sins also shall melt away, as the ice in the fair warm weather.
16 He that forsaketh his father is as a blasphemer; and he that angereth his mother is cursed: of God.
17 My son, go on with thy business in meekness; so shalt thou be beloved of him that is approved.
18 The greater thou art, the more humble thyself, and thou shalt find favour before the Lord.

The Brenton translation of the Septuagint is in the public domain.