Psalms 91:11

כִּי (ki) 1) that, for, because, when, as though, as, because that, but, then, certainly, except, surely, since 1a) that 1a1) yea, indeed 1b) when (of time) 1b1) when, if, though (with a concessive force) 1c) because, since (causal connection) 1d) but (after negative) 1e) that if, for if, indeed if, for though, but if 1f) but rather, but 1g) except that 1h) only, nevertheless 1i) surely 1j) that is 1k) but if 1l) for though 1m) forasmuch as, for therefore

מַלְאָךְ (ma.le.akh) : messenger 1) messenger, representative 1a) messenger 1b) angel 1c) the theophanic angel

צָוָה (tsa.vah) 1) to command, charge, give orders, lay charge, give charge to, order 1a)(Piel) 1a1) to lay charge upon 1a2) to give charge to, give command to 1a3) to give charge unto 1a4) to give charge over, appoint 1a5) to give charge, command 1a6) to charge, command 1a7) to charge, commission 1a8) to command, appoint, ordain (of divine act) 1b) (Pual) to be commanded

שָׁמַר (sha.mar) : obey/observe 1) to keep, guard, observe, give heed 1a) (Qal) 1a1) to keep, have charge of 1a2) to keep, guard, keep watch and ward, protect, save life 1a2a) watch, watchman (participle) 1a3) to watch for, wait for 1a4) to watch, observe 1a5) to keep, retain, treasure up (in memory) 1a6) to keep (within bounds), restrain 1a7) to observe, celebrate, keep (sabbath or covenant or commands), perform (vow) 1a8) to keep, preserve, protect 1a9) to keep, reserve 1b) (Niphal) 1b1) to be on one's guard, take heed, take care, beware 1b2) to keep oneself, refrain, abstain 1b3) to be kept, be guarded …

כֹּל (kol) 1) all, the whole 1a) all, the whole of 1b) any, each, every, anything 1c) totality, everything Aramaic equivalent: kol (כֹּל "all" H3606)

דֶּ֫רֶךְ (de.rekh) : conduct/lifestyle 1) way, road, distance, journey, manner 1a) road, way, path 1b) journey 1c) direction 1d) manner, habit, way 1e) of course of life (fig.) 1f) of moral character (fig.)