Rubuta ci gaba ga wannan sakin layi - Mercer ya zama ɗan ƙasar Isra'ila, kuma ya yi aiki a cikin Sojojin Tsaron Isra'ila na tsawon shekaru biyu. Mercer kuma ya buga wa kungiyar kwallon kwando ta Isra'ila wasa a 1986 FIBA World Championship da 1987 Eurobasket
Gasar zakarun Turai. A shekara ta 1982, da yake shi Baftist ne a dā, ya koma Yahudanci. Ya ce "Ina tsammanin za ku iya kira ni Bayahude Almasihu ko Bayahude Kirista. A lokacin da nake can can ne na fi kusa da Allah. Ina kare kasar Isra'ila da gaske... " A shekara ta 2006 Ofishin Jakadancin Isra'ila a kudu maso gabashin Amurka ya karrama shi kuma ya zama jakadan kyakkyawar manufa ga Jihar Isra'ila.