Teach me, O Lord, the way of thy statutes - This begins a new division of the psalm, indicated by the letter He (ה h, or “h”). The word rendered “teach” means properly to throw, to cast, to hurl; and then, to teach - as if truth were thrown and scattered abroad. The sentiment is the same as in Psalms 119:12.
And I shall keep it unto the end - Always. To the end of life. His keeping it depended on grace given to him continually to dispose and enable him to do it.