Havamal

I counsel thee, etc. If thou knowest thou has a friend, whom thou well canst trust, go oft to visit him; for with brushwood overgrown, and with high grass, is the way that no one treads.

Ráðumk þér Loddfáfnir en þú ráð nemir njóta mundu ef þú nemr þér munu góð ef þú getr veiztu ef þú vin átt þanns þú vel trúir farðu at finna opt því at hrísi vex ok hávu grasi vegr er vættki trøðr

Havamal: 119, Loddfáfnismál