Proverbs 22:21

sendunto thee Rather, send thee, with A.V. marg. and R.V.

The verse is well rendered in the Rel. Tract. Society's Annotated Bible:

"To teach thee truth, even words of faithfulness;

That thou mayest bring back faithful words to them that send thee"; i.e. to train thee in truthfulness, that thou mayest be faithful and trustworthy in whatever business thou art employed.