Mungu majani, kama ishara ya agano lake na Nuhu, a upinde wa mvua angani.
Lakini kwa nini upinde wa mvua?
Yesu ndiye Nuru ya ulimwengu. Mwanga, wakati umevunjika, huvunja rangi nyingi. Mungu alikuwa amefanya agano na watu wake, lakini kabla ya Yesu kuja, utaratibu wa kiroho ulikuwa bado umevunjika-kuvunjwa-Mpaka Kristo alikuja na kukusanya vitu vyote ndani Yake akivifanya kuwa "moja". Unaweza kusema Msalaba ni prism, eneo la Mwanga.
Tunapoona upinde wa mvua, tunapaswa kuutambua kama ishara ya Kristo, Agano Jipya: arc ambayo inagusa mbingu, lakini pia dunia… ikiashiria asili mbili ya Kristo, zote mbili kimungu na binadamu.
In all wisdom and insight, he has made known to us the mystery of his will in accord with his favor that he set forth in him as a plan for the fullness of times, to sum up all things in Christ, in heaven and on earth.-Waefeso, 1: 8-10
