Representatives of the Pray at the Pump movement plan to bring their godly efforts to Capitol Hill on Monday, when they will hold a two-hour vigil for Rep. Gabrielle Giffords (D-Ariz.) and the safety of all elected officials.

The group will also urge President Barack Obama to hold a “National Day of Prayer and Fasting” this weekend as part of the Martin Luther King Jr. holiday. The Pray at the Pump members will meet at 1:30 p.m. on the Capitol’s West Front.

“These prayer [warriors] will form prayer groups with the large number of visitors from around the world who come to visit the Capitol on a daily basis,” movement founder Rocky Twyman writes in a press release. “There will be a Walking Book of Hope for the public to sign that will be sent to the grieving family of the Congresswoman.”

The Pray at the Pump members would also like to see Obama hold a bipartisan White House prayer summit, Twyman writes.

The Pray at the Pump movement began several summers ago, when participants would pray at gas stations in an effort to lower fuel prices. After prices went down, Twyman and his colleagues turned their attention to an eclectic mix of other political issues, but also news topics in general. They recently prayed for cancer-stricken singer Aretha Franklin’s speedy recovery, for example.