SEV Biblia, Chapter 1:8
El libro de esta ley nunca se apartará de tu boca; antes de día y de noche meditarás en él, para que guardes y hagas conforme a todo lo que en él está escrito; porque entonces harás prosperar tu camino, y entonces todo lo entenderás.
Clarke's Bible Commentary - Joshua 1:8
Verse 8. This book of the law shall not depart out of thy mouth] The law which had already been written by Moses, and from which he and the people were to take all those precepts by which their lives were to be governed. Though there was a copy of the law laid up in the sanctuary, yet this was not sufficient. Joshua must have a copy for himself, and he was to consult it incessantly, that his way might be made prosperous, and that he might have good success. If he kept God's word, God would keep him in body and soul; if he should observe to do according to that word, then God would cause all his way to be prosperous. Those who are obedient to God lack no manner of thing that is good.
John Gill's Bible Commentary
Ver. 8. This book of the law shall not depart out of thy mouth , etc.] He was often to read it, frequently repeat it, and speak of it, to refresh his own memory with it, and the memory of those about him. Jarchi restrains it to the book of Deuteronomy now before him: but thou shalt meditate therein day and night ; whenever he had any leisure from the important business of his office, whether by day or night, (see Psalm 1:2); that thou mayest observe to do according to all that is written therein ; which frequent speaking of it, and constant meditation on it, would lead unto: for then thou shalt make thy way prosperous, and then thou shalt have good success ; in his wars with the Canaanites.
Matthew Henry Commentary
Verses 5-9 - Joshua is to make the law of God his rule. He is charged to meditat therein day and night, that he might understand it. Whatever affairs of this world we have to mind, we must not neglect the one thing needful All his orders to the people, and his judgments, must be according to the law of God. Joshua must himself be under command; no man's dignit or dominion sets him above the law of God. He is to encourage himsel with the promise and presence of God. Let not the sense of thine ow infirmities dishearten thee; God is all-sufficient. I have commanded called, and commissioned thee to do it, and will be sure to bear the out in it. When we are in the way of duty, we have reason to be stron and very bold. Our Lord Jesus, as Joshua here, was borne up under his sufferings by a regard to the will of God, and the commandment from his Father.
Original Hebrew
לא 3808 ימושׁ 4185 ספר 5612 התורה 8451 הזה 2088 מפיך 6310 והגית 1897 בו יומם 3119 ולילה 3915 למען 4616 תשׁמר 8104 לעשׂות 6213 ככל 3605 הכתוב 3789 בו כי 3588 אז 227 תצליח 6743 את 853 דרכך 1870 ואז 227 תשׂכיל׃ 7919
