Psalms 89:28

עוֹלָם (o.lam) : enduring/eternal 1) long duration, antiquity, futurity, for ever, ever, everlasting, evermore, perpetual, old, ancient, world 1a) ancient time, long time (of past) 1b) (of future) 1b1) for ever, always 1b2) continuous existence, perpetual 1b3) everlasting, indefinite or unending future, eternity

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 …

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 …

חֶ֫סֶד (che.sed) goodness, kindness, faithfulness

בְּרִית (be.rit) 1) covenant, alliance, pledge 1a) between men 1a1) treaty, alliance, league (man to man) 1a2) constitution, ordinance (monarch to subjects) 1a3) agreement, pledge (man to man) 1a4) alliance (of friendship) 1a5) alliance (of marriage) 1b) between God and man 1b1) alliance (of friendship) 1b2) covenant (divine ordinance with signs or pledges) 2) (phrases) 2a) covenant making 2b) covenant keeping 2c) covenant violation

אָמַן (a.man) 1) to support, confirm, be faithful 1a) (Qal) 1a1) to support, confirm, be faithful, uphold, nourish 1a1a) foster-father (subst.) 1a1b) foster-mother, nurse 1a1c) pillars, supporters of the door 1b) (Niphal) 1b1) to be established, be faithful, be carried, make firm 1b1a) to be carried by a nurse 1b1b) made firm, sure, lasting 1b1c) confirmed, established, sure 1b1d) verified, confirmed 1b1e) reliable, faithful, trusty 1c) (Hiphil) 1c1) to stand firm, to trust, to be certain, to believe in 1c1a) stand firm 1c1b) trust, believe Aramaic equivalent: a.man (אֲמַן "to trust" H0540)