Havamal

With arms and vestments friends should each other gladden, those which are in themselves most sightly. Givers and requiters are longest friends, if all (else) goes well.

Vápnum ok váðum skulu vinir gleðjask þat er á sjalfum sýnst viðr gefendr ok endrgefendr erusk vinir lengst, ef þat bíðr at verða vel

Havamal: 41, Gestaþáttr